Nikola Tesla Documents Receipts, papers, notes and files related to Nikola Tesla Giddings Brothers 1899 A receipt from a dry goods store in Colorado Springs where Nikola Tesla purchased felt. Tags Colorado Springs Pagination Enjoy other documents First First item Previous Previous item Next Next item Last Last item Within the Universe Books Books written by and about Nikola Tesla. Quotes Profound and insightful quotes by Nikola Tesla. Patents Nikola Tesla held around 200 patents worldwide. Timeline Important moments and events related to Tesla. Articles Nikola Tesla in the press. Images Nikola Tesla image and photo library. Landmarks Locations related to Nikola Tesla. Letters Letters to, from and about Nikola Tesla. Movies and TV Nikola Tesla on the screen.