I looked around for a guide or a curator or a guard to ask if I could handle it to show it to my wife - but no one was anywhere nearby.
So I picked it up and showed her how it worked and even opened up the receiver to show her bolt. spring and rubber buffer - and then a very horrified guard showed up!
He looked thunderstruck as I tried to explain things but he didn't know one word of English and my Vietnamese was limited to "hands up" and "come here" (neither of which seemed appropriate). I put the K-50 back into the bucket and the guard stayed with us until we left the museum.
No harm, no foul...I guess.
Hahahahaha! I actually did LOL as I read your post, I can just see that going down...:O