This bullet looks to be cast in a copper wire jacket. Manufacture? Patent?
One variation of the wire wrapped bullets that were semi-popular in the pre-war years. They’ve been discussed several times on the Forum.
My question was who made this type of wire wrap, mfg name?
Do a search. The info is out there on the Forum, with box photos and patent info if I remember correctly.
IAA Journal articles:
Wire Patched Bullets, issue #407, page34
Wire Wrapped Bullets, issue #301, page 3
The old posts here on the Forum, the photos are now missing: viewtopic.php?f=1&t=2231&hilit=wire+patch