Illustration showing succession of golden rectangles that are used to construct the golden spiral. Two…
A piece of wood or metal to stamp a letter or character. "(1) the body, (2) the face, (3) the shoulder,…
Panama, Colombian Republic Stamp (1 centavo) from 1887-1889
Colombian Republic Insured Letter Stamp (50 centavos) from 1870
Tolima, Colombian Republic Insured Letter Stamp (10 centavos) from 1879
Bavaria Return Letter Stamp (value unknown) from 1865
A decorative border of envelopes, letters, and inkwells with four windows and banners for captions.
"Stereotyping is the art of fabricating metal plates resembling pages of type, which impressions may…
A boy doing math homework with help from his father and a meter stick. His mother helps his younger…
Numbered boxes that are used for fractions. Fraction boxes within can be referred by the letter corners.…
Taste goblet from dog's epiglottis (laryngeal surface near the base) , precisely similar in structure…
An illustration of the story, Picciola by X. B. Saintine. Count Charney was imprisoned by the Emperor…
In this chart of single stroke letters, the capitals are arranged in "family order," first the straight…
In this chart of single stroke letters, the capitals are arranged in "family order," first the straight…
The distribution of cutaneous nerves n the back of the trunk. On the left side the distribution of the…
Martin Luther (November 10, 1483 – February 18, 1546) was a German monk, theologian, university professor,…
Jefferson Davis', the President of the Confederate States of America, first message.
Edmund Grindal (c. 1519 – 6 July 1583) was an English church leader who successively held the…
Washington's Seal incorporates the same design which can be found in Washington's Arms. The coat of…
Washington's Private Seal incorporates the same design which can be found in Washington's Arms. The…
Governor Stuyvesant tearing up the letter demanding the surrender of New Amsterdam.