[Stationery] Charles H. Brightly, Mathematical Instrument Maker, 1880

Example of stationery of a Nineteenth century business concern in Philadelphia indicating that at the time Philadelphia was a leading center for engineering, surveying and astronomical instruments. The item is a single invoice measuring 23.5 x 22 cm: upper left corner has a trade mark a transit within a scroll, beneath are the words engineering, surveying and astronomical instruments – terms net cash. The letterhead reads Philadelphia, …………….18…… Mr…….. Bought of Charles H. Brightly, Mathematical Instrument Maker, 2910 North Sixteenth Street.