What is "pantelegraph"

Pantelegraph \Pan*tel"e*graph\, n. [Pan- + telegraph.] See under Telegraph.

n. An early kind of fax machine using telegraph lines to transmit small drawings, signatures, etc.

Pantelegraph]]

The pantelegraph (Italian: pantelegrafo; French: pantélégraphe) was an early form of facsimile machine transmitting over normal telegraph lines developed by Giovanni Caselli, used commercially in the 1860s, that was the first such device to enter practical service, It could transmit handwriting, signatures, or drawings within an area of up to 150 × 100 mm.