Obock Camel Post Stamp (5 p) from 1893

Obock 5 P Camel Post Stamp, 1893

Obock Camel Post Stamp (5 p) from 1893

In the gold extraction process, finely crushed ores are leached in vats with a very diluted solution of Potassuim Cyanide (KCN), containing 0.05 to 0.3 percent KCN (or its equivalent, Sodium Cyanide, NaCN) which is allowed to remain for twelve to twenty-four hours to dissolve the gold.

Cyanide Leaching Tank (Gold Extraction)

In the gold extraction process, finely crushed ores are leached in vats with a very diluted solution…

The present invention relates to a stamp dispensing and envelope handling device. Permits a user to stick a stamp cut from a continuos roll and affix it on an envelope without the need of individual handling of the stamp by the user.

Stamp Affixing Device

The present invention relates to a stamp dispensing and envelope handling device. Permits a user to…

A Frue Vanner is a shaking, rubber belt used to concentrate gold ore 'pulp'.

Frue Vanner (End View)

A Frue Vanner is a shaking, rubber belt used to concentrate gold ore 'pulp'.

A Frue Vanner is a shaking, rubber belt used to concentrate gold ore 'pulp'.

Frue Vanner (Side View)

A Frue Vanner is a shaking, rubber belt used to concentrate gold ore 'pulp'.

The heraldic seal of the Dauphin Louis in 1216.

Seal of the Dauphin Louis

The heraldic seal of the Dauphin Louis in 1216.

A postage stamp is adhesive paper evidence of a fee paid for postal services. Usually a small rectangle attached to an envelope, the stamp signifies the person sending it has fully or partly paid for delivery.

Fish Design Postage Stamp

A postage stamp is adhesive paper evidence of a fee paid for postal services. Usually a small rectangle…

A tool in which the wood working end is pointed, blunt, and a continuous edge enclosing an area, or a pattern in relief or intaglio. Used to perforate or indent a solid material.

Punch

A tool in which the wood working end is pointed, blunt, and a continuous edge enclosing an area, or…

This furnace is used to purify a gold concentrate. The gold concentrates, if non-pyritic, are treated in grinding pans in the bottom of which mercury is placed. The amalgam (mercury alloy), after squeezing out the excess mercury, is heated in the retort, to distil (separate) off the rest and leave the gold, which is then melted and cast into bars of gold bullion of varying fineness.

Retort Furnace for Gold Bullion

This furnace is used to purify a gold concentrate. The gold concentrates, if non-pyritic, are treated…

A seal representing the stamp act.

Stamp Act

A seal representing the stamp act.

A seal representing the stamp act.

Stamp Act

A seal representing the stamp act.

Stamp Mill.

Stamp Mill

Stamp Mill.

A stamp used after the Stamp Act of 1765 was passed. The stamp was required to be purchased and placed on all legal documents.

A Stamp of 1765

A stamp used after the Stamp Act of 1765 was passed. The stamp was required to be purchased and placed…

Afghanistan Stamp (value unknown) from 1868

Afghanistan Stamp Unknown Value, 1868

Afghanistan Stamp (value unknown) from 1868

Afghanistan Stamp (value unknown) from 1881-1886

Afghanistan Stamp Unknown Value, 1881-1886

Afghanistan Stamp (value unknown) from 1881-1886

Afghanistan Stamp (value unknown) from 1892

Afghanistan Stamp Unknown Value, 1892

Afghanistan Stamp (value unknown) from 1892

Angola Stamp (5 reis) from 1886

Angola 5 Reis Stamp, 1886

Angola Stamp (5 reis) from 1886

Anjouan Stamp (1 c) from 1892

Anjouan Stamp 1 C, 1892

Anjouan Stamp (1 c) from 1892

Antioquia, Colombian Republic Stamp (5 centavos) from 1883

Antioquia, Colombian Republic Cinco Centavos Stamp, 1883

Antioquia, Colombian Republic Stamp (5 centavos) from 1883

Antioquia, Colombian Republic Stamp (2-1/2 centavos) from 1869

Antioquia, Colombian Republic Dos Y Medio Centavos Stamp, 1869

Antioquia, Colombian Republic Stamp (2-1/2 centavos) from 1869

Antioquia, Colombian Republic Stamp (1 centavo) from 1892

Antioquia, Colombian Republic Un Centavo Stamp, 1892

Antioquia, Colombian Republic Stamp (1 centavo) from 1892

Antioquia, Colombian Republic Stamp (1 peso) from 1873

Antioquia, Colombian Republic Un Peso Stamp, 1873

Antioquia, Colombian Republic Stamp (1 peso) from 1873

Argentine Republic Stamp (10 centavos) from 1867-1873

Argentine Republic Diez Centavos Stamp, 1867-1873

Argentine Republic Stamp (10 centavos) from 1867-1873

Argentine Republic Stamp (2 centavos) from 1877-1880

Argentine Republic Dos Centavos Stamp, 1877-1880

Argentine Republic Stamp (2 centavos) from 1877-1880

Argentine Republic Stamp (25 centavos) from 1877-1880

Argentine Republic Veinticinco Centavos Stamp, 1877-1880

Argentine Republic Stamp (25 centavos) from 1877-1880

Austria Stamp (3 kreuzer 10 para) from 1890 - For Austrian post offices in the Levant.

Austria 3 Kreuzer 10 Para Stamp, 1890

Austria Stamp (3 kreuzer 10 para) from 1890 - For Austrian post offices in the Levant.

Austria Stamp (3 soldi) from 1858-1859

Austria 3 Soldi Stamp, 1858-1859

Austria Stamp (3 soldi) from 1858-1859

Austria Stamp (50 soldi) from 1867 - For Austrian post offices in the Levant.

Austria 50 Soldi Stamp, 1867

Austria Stamp (50 soldi) from 1867 - For Austrian post offices in the Levant.

Azores Stamp (5 reis) from 1882-1883

Azores 5 Reis Stamp, 1882-1883

Azores Stamp (5 reis) from 1882-1883

Bahamas Stamp (1 penny) from 1884

Bahamas One Penny Stamp, 1884

Bahamas Stamp (1 penny) from 1884

Barbados Stamp (4 pence) from 1892

Barbados Four Pence Stamp, 1892

Barbados Stamp (4 pence) from 1892

Bavaria Stamp (1 mark) from 1874-1876

Bavaria 1 Mark Stamp, 1874-1876

Bavaria Stamp (1 mark) from 1874-1876

Belgium Stamp (1 franc) from 1865

Belgium Un Franc Stamp, 1865

Belgium Stamp (1 franc) from 1865

Benin Stamp (15 [40] C) from 1892

Benin 15 (40) C Stamp, 1892

Benin Stamp (15 [40] C) from 1892

Bermuda Stamp (2 pence halfpenny) from 1884-1886

Bermuda Two Pence Halfpenny Stamp, 1884-1886

Bermuda Stamp (2 pence halfpenny) from 1884-1886

Bolivar, Colombian Republic Stamp (5 centavos) from 1877-1878

Bolivar, Colombian Republic Cinco Centavos Stamp, 1877-1878

Bolivar, Colombian Republic Stamp (5 centavos) from 1877-1878

Bolivia Stamp (50 centavos) from 1867

Bolivia 50 Centavos Stamp, 1867

Bolivia Stamp (50 centavos) from 1867

Bolivia Stamp (5 centavos) from 1876

Bolivia Cinco Centavos Stamp, 1876

Bolivia Stamp (5 centavos) from 1876

Bolivia Stamp (1 centavo) from 1887

Bolivia Un Centavo Stamp, 1887

Bolivia Stamp (1 centavo) from 1887

Bosnia Stamp (1 N) from 1879

Bosnia 1 N Stamp, 1879

Bosnia Stamp (1 N) from 1879

Brazil Stamp (100 reis) from 1882-1885

Brazil 100 Reis Stamp, 1882-1885

Brazil Stamp (100 reis) from 1882-1885

Brazil Stamp (50 R) from 1887-1888

Brazil 50 R Stamp, 1887-1888

Brazil Stamp (50 R) from 1887-1888

Brazil Stamp (700 reis) from 1887-1888

Brazil 700 Reis Stamp, 1887-1888

Brazil Stamp (700 reis) from 1887-1888

Bremen Stamp (10 grote) from 1861-1863

Bremen Zehn Grote Stamp, 1861-1863

Bremen Stamp (10 grote) from 1861-1863

British Bechuanaland Stamp (1 penny) from 1887

British Bechuanaland One Penny Stamp, 1887

British Bechuanaland Stamp (1 penny) from 1887

British Columbia Stamp (3 pence) from 1866

British Columbia Three Pence Stamp, 1866

British Columbia Stamp (3 pence) from 1866

British East Africa Stamp (2 rupees) from 1890

British East Africa Two Rupees Stamp, 1890

British East Africa Stamp (2 rupees) from 1890

British Guiana Stamp (1 cent) from 1862

British Guiana One Cent Stamp, 1862

British Guiana Stamp (1 cent) from 1862

British Guiana Stamp (2 cents) from 1889

British Guiana 2 Cents Stamp, 1889

British Guiana Stamp (2 cents) from 1889

British Guiana Stamp (6 cents) from 1863

British Guiana VI Cents Stamp, 1863

British Guiana Stamp (6 cents) from 1863

British Honduras Stamp (6 pence) from 1888

British Honduras Six Pence Stamp, 1888

British Honduras Stamp (6 pence) from 1888

British North Borneo Stamp (50 cents) from 1885

British North Borneo 50 Cents Stamp, 1885

British North Borneo Stamp (50 cents) from 1885

British North Borneo Stamp (5 dollars) from 1887

British North Borneo Five Dollars Stamp, 1887

British North Borneo Stamp (5 dollars) from 1887

British Protectorate Stamp (1/2 penny) from 1889

British Protectorate Half Penny Stamp, 1889

British Protectorate Stamp (1/2 penny) from 1889

British South Africa Company Stamp (1 pound) from 1891

British South Africa Company One Pound Stamp, 1891

British South Africa Company Stamp (1 pound) from 1891

Brunswick Stamp (1 silver groschen) from 1852

Brunswick Ein Silber Groschen Stamp, 1852

Brunswick Stamp (1 silver groschen) from 1852

Buenos Ayres Stamp (4 reales) from 1860

Buenos Ayres 4 Reales Stamp, 1860

Buenos Ayres Stamp (4 reales) from 1860

Bulgaria Stamp (1 S) from 1885-1888

Bulgaria 1 S Stamp, 1885-1888

Bulgaria Stamp (1 S) from 1885-1888

Canada Stamp (1/2 cent) from 1868-1869

Canada Half Cent Stamp, 1868-1869

Canada Stamp (1/2 cent) from 1868-1869

Cape of Good Hope Stamp (1 penny) from 1865

Cape of Good Hope One Penny Stamp, 1865

Cape of Good Hope Stamp (1 penny) from 1865