The gloves were used in Raiders only, and they appear from the Raven Bar and throughout the movie until they enter Katanga´s ship. Whenever Indy is in full gear the gloves are on.
The gloves were made by MidWest leather. Since these gloves are hard to find, Wells Lamont gloves are close to the real thing.
And of course I don't have these either. But, I have an O.K. substitute.