Quoted By:
Here's a thing I found a while back, a drum magazine for 1911 pistols, seen here inserted into an old Ithaca made 1911A1. There's extremely little information about these on the web, but it seems they exist in some quantity, because you can find listings for them fairly often, and they tend to be listed for about $100 to $200.
It seems that it's made out of steel, and the listed capacity is pretty much always 28 rounds, the front of the drum reads "TAYLOR MK.I .45" and "BINGHAM LTD, ATLANTA", with the back having directional arrows and the text "WIND 8 TO 10 CLICKS", with a winding lever on the back. Bingham could possibly refer to Squires Bingham, an importer known for stuff like a .22LR rifle with a drum, which was styled to look a bit like the Soviet Russian PPSh-41, they're still around, seemingly.
The follower looks like it has a rounded shape, probably to help it ride smoothly inside the drum (almost like a dummy cartridge, but without actually being a full dummy cartridge body), it seems like it'd be a single track spiral drum, like an old Luger "Snail Drum". Interestingly, I have found a single picture of one of these Taylor drums where the "tower" on the drum is offset at an angle, a little like on such a Snail Drum (but without the bend). No idea if that was a production item, a prototype, a custom, or what.
I saw one mention on a forum that these drums were made in the 1980s, and were offered as part of some sort of "survival kit," where there was this drum for your 1911, as well as an attachable shoulder stock and a long barrel (so as to not make an NFA item). I have seen pictures of a stock paired with one of these drums in a lot, together with a magazine loading tool, so perhaps there's some truth to that. The stock attaches to a replacement mainspring housing.
I like the older fashioned look of these drums, steel and all, as opposed to virtually every other drum you can find for a 1911 pistol, which are plastic.