What's a 3913LS go for nowdays?

Any good resources on historical price for 1911s to civilians? All I can find is the 1916 Mongomery Ward catalog (22 bucks+90c per extra mag) and 1922 Sears (34 bucks+1.50 for extra mages) but Archive.org's search function is crap and I can't find any other catalogs.