Displaying articles 11-14 of 14

Fred A. Sperry

Average: 3 (2 votes)
November 1st, 1899

This receipt is for shellac, which Nikola Tesla used to seal wood and windings for air-core transformers in his magnifying transmitter in Colorado Springs.

Anton Hubner

Average: 3 (2 votes)
July 22nd, 1899

Mr. Anton Hubner seems to have been one of Nikola Tesla's assistants in Colorado Springs. Mr. Hubner is listed in other documents as making payment for items for Tesla.

Continental Oil Company

Average: 3.5 (2 votes)
July 14th, 1899

A receipt from the Continental Oil Company for paraffin oil. Nikola Tesla used this to seal his salt-water capacitors in his 20-million volt magnifying transmitter at Colorado Springs.

L. G. Goodspeed

Average: 4.5 (2 votes)
December 21st, 1899

It seems that Nikola Tesla must have broken his watch or possibly hired the local watchmaker to assist him with some of the delicate instruments he used in his Colorado Springs experiments.