Hi there. I'm selling my Leica M3 on Craigslist, but when someone tried it out it snapped one photo and then stopped. Do you guys know what the problem is? The shutter is closed, so it makes no sense to me why it stopped snapping photos. Here's a link to the Craigslist ad: https://accounts.craigslist.org/post/shwpst?pii=439658979&db=lv Any info would be appreciated. Thanks.