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The harmonium is a free standing keyboard instrument, similar to a reed organ or a pipe organ.

Harmonium

The harmonium is a free standing keyboard instrument, similar to a reed organ or a pipe organ.

A piano keyboard.

Keyboard

A piano keyboard.

A musical instrument consisting essentially of one or more graduated sets of smll free reeds of metal, which are sounded by streams of air set in motion by a bellows, and controlled from a keyboard like tha of a pianoforte.

Reed Organ

A musical instrument consisting essentially of one or more graduated sets of smll free reeds of metal,…

An 'arm' inside a typewriter with a character on the end of it. There are generally two characters per typebar, one which will be printed if the corresponding key is struck by itself, the other of which will be printed if the corresponding key is struck while the shift key is held.

Detachable Typebar

An 'arm' inside a typewriter with a character on the end of it. There are generally two characters per…

"A Typewriter is a machine fitted with types which print by a pressure on the keys with the fingers. The principle, briefly stated, is that of a series of rods pivoted to keyed rods, similar to the action of a pianoforte, the ends of the rods carrying the characters of the alphabet and all striking on a common center. There is a self-inking arrangement, and several minor improvements have been added in recent years, bringing the invention to a high state of perfection. The writing machine called the typewriter was invented at Milwaukee, Wis., in 1867, by C. Latham Sholes, Samuel W. Soule, and Carlos Glidden."—(Charles Leonard-Stuart, 1911)

Typewriter

"A Typewriter is a machine fitted with types which print by a pressure on the keys with the fingers.…