Where's the breech block?!

Doesn't look like anything a decent needle scaler couldn't handle...

I guess thanks are in order for people like you are hard to come by; those with an appreciation for things left outside to rot. I've never really understood why these behemoths do not at least have a canopy built over them. There must be hundreds of similar tanks at installations all over the country just left out in the open. A lot of them are M-48s and M-60s, which is not surprising I guess, because they are plentiful and have little value. Speaking of which, can one really put much of a price on many of these tanks left "out in the cold"? A lot of them are in a shabby state.

Thanks for the photos. Any chance you can get a pic of the interior latch that unlocks the hatch from 45 degrees?