Actually, the original gloves were pretty much just that-- a white (most likely) dress/parade glove. You could probably modify the snap to be a button if you wanted to be accurate, but I think it might make a pretty good base. That's probably the modern day equivalent of the original prop glove.
Actually, I happen to know first hand they work very well for a base glove since that's pretty much what they used on the originals.
Although I didn't get my base gloves through there, my newest batch of base gloves are almost certainly identical. I don't know how folks getting my gloves will respond to the inconvenience of having something extra to fasten in addition to the velcro, but they will "look" closer.
I've been in the military for over 15 years now, and it's true: things change with the time, including the uniforms we use. During the time I've been there, I've seen two changes in the "Dress Green" (the semi-formal, good-looking suit) in different kind of fabric and quality, as well as the BDU's (normal camouflage uniform you see most of the time), and I think that Tyler is right about the construction of the glove itself...It probably was a Parade or Ceremonies kind of glove, which I think I've seen them somewhere long time ago...but just like I said about the uniforms, some things change, as I think it happened to the gloves as well before I joined the military.
And I think and my theory about the originals is that they were made exclusively for the movie's character, and not some kind of glove that you could find anywhere, like someone said in another thread, -..."some kind of ski gloves..." or "welding gloves"....now with the Ref CD on hand, plus this pic just posted here...all I can say is that S1 is the closest one (perhaps the better) in making this gloves in the forum, and maybe anywhere!
I think I'm going to give this a shot too. I also found a portable sewing machine at Big Lots today that looks like its small enough to fit into the finger area of the glove which would take the hand-stitching out of it and make it easier.
I followed Chrima's idea for gloves and they turned out pretty good. I got white ones and dyed them gray using black Rit dye. I'm not nearly the seamster Chrima is, so these took a long time to do. I would recommend getting the longer 12" parade gloves so they stay tucked in your armor. Here's a reference photo