Colonial Prov

Why does my old knife rust after carrying in a pocket for a couple days?

i have an old knife that is from what im thinking is made around the 70′s or 80′s. just a guess as i have not been able to find a date. this is what it looks like

http://www.proxibid.com/AuctionImages/746/20112/Detail/lot317.jpg

its called a master barlow with a 4 inch blade. its not that new shinny stainless blade,its an old blade that is like a dull grey and says prov colonial USA. ive heard the blade described as a “frosty” metal

after i carry it for a few days the blade starts to have rust spots,so i have to sand the spots off with real fine sandpaper around 400+ grit. then it looks good,then a few days later they are back. should i keep some kind of oil on the blade,cause i’ve got knifes older than it and some newer than it and i never had trouble with them rusting

Absolutely use oil on it! Oil will wipe right off, rust doesn’t! I would use any good gun oil on it. Remember, a pocket is a warm, damp place and your knife needs protection from that. I recommend a product called ” Sheath ” made by ” Birchwood Casey ” or” Breakfree CLP “. Either of these will protect your metal parts! I think your knife is a carbon steel blade which will rust badly, if not protected. I live in Florida, where it’s warm and damp and I use these two products on my guns and knives with excellent results!

Master Barlow Colonial Prov. USA Old Pocketknife

U.S.NAVY ~ MARK I WW2 FIGHTING KNIFE W/LEATHER SHEATH $69.00 This is a brand new item made by Colonial, not an original WW2 Mark I. The original knife was made for the U. S. Department of Defense during WW2 and issued primarily to Naval personal. The Colonial Mark I has reproduction markings, U.S.N. on one side of the blade and on the other Colonial Prov. R.I. This fighting knife features a 1095 high carbon steel, black parkarized blade with full tang c…

Catalogo del Museo Colonial e Historico de Lujan. …