I have a few questions about RCS Boer War Handcuffs.
The first pair I purchased was marked and dated 1943. It did not come with a key. I was told that due to the length of the bolt that Boer War keys are hollow. I wasn't able to find one (original or otherwise). I picked up one of Ian's regular plug keys a while back and was surprised when it fit perfectly and opened the cuff.
Today my 2nd Boer War cuff came in the mail. It's also an RCS, but this one is unmarked. The key was hollow as it should be. The cuffs appear to be the same exact size, but the diameter of the keys and key holes are different. The unmarked cuff takes a much larger key, it won't open the 1943 dated cuff and won't even fit in the key hole. The regular plug key that does open the marked and dated cuff, doesn't open the unmarked cuff.
The unmarked cuff has a much cruder finish than the marked / dated cuff. Is it common for RCS plug 8 cuffs to take different sized keys? What time period would the unmarked cuff have been made as opposed to the 1943 dated cuff?