Yes, heat really works. 🙂 Often the glue is so deteriorated it comes off in little bits with the vulcanite, leaving a clean aluminum shell ready for replacement.
Speaking of replacement, I've been ordering from hugostudio, the closest vulcanite copy I've yet come across: https://rangefinderforum.com/forums/showthread.php?p=2630951
Speaking of replacement, I've been ordering from hugostudio, the closest vulcanite copy I've yet come across: https://rangefinderforum.com/forums/showthread.php?p=2630951