I have an 1897 price book from my great-great grandfathers business on Maiden Lane showing most mainsprings were $1 per dozen and $10.59 per gross from Regent. Not quite 1850 but a starting point. Balance staffs were $7.50 per gross. Watch oil was $0.35 per bottle. Watchmakers roll top bench in walnut or oak was $20.00 with 10 drawers, apron drawer, vise rest and casters. Plain bench was $12.00
These catalogues are available on line from archive.org, but are quite large in size, so make sure you have the time to download them! Silber and Flemming were wholesalers, and sold a very wide variety of items including clocks, watches and clock/watchmaking supplies among a cornucopia of other things
Hi Zedric, can you give me a direct link to the catalogue please? I searched archive.org and could only find the 1876 cataogue. I want to see if the 1880 catalogue has prices for mainsprings and balance springs/hairsprings.
Richard, the hairsprings in my great, great grandfathers book, Cross and Beguelin, were for Swiss watches only, $0.25-0.50 for uncolleted and $0.40-0.75 for colleted, they were from $2.50 to 5.00 per gross.
Both the English and American catalogues give the same price even though they are about 17 years apart: roughly 2 cents for balance springs and 8 cents for mainsprings. It seems prices were quite stable over this period of time.