I just happened to stumble across a web site that is "all things Indy Jones" and it contains hard-core facts and photos of Indy's guns and holsters. This is not a kid's site, it's a well-documented place for the adventurer in all of us. FYI, check out the info on his leather jacket and how you can order one from the actual British leathersmith who made it for the film. Enjoy....
http://www.indygear.com/gear/holster.htm
http://www.indygear.com/gear/guns.htm
http://www.indygear.com/gear/holster.htm
http://www.indygear.com/gear/guns.htm