Frank F. Bumstead & Company December 12th, 1899 This receipt is for brass tubes, bolts and clips, a sheet of brass and labor for threading and...
Continental Oil Company July 14th, 1899 A receipt from the Continental Oil Company for paraffin oil. Nikola Tesla used this to seal his salt...
Stevens Fotograferie November 3rd, 1899 This is one of the receipts for the photos taken at Colorado Springs , some of the most famous Tesla...