Opening a 31E

[jwr]

I'm trying to restore a 31E and I've hit a snag at the very beginning: I can't open the case. I've removed the two screws above the battery compartment and tried to pry the case halves apart, but they are firmly hooked together at the bottom. I don't want to use more force, because I can already see a crack appearing in the case.

Does anybody have a picture of an opened case, so that I could see the hook mechanism? Any suggestions on how to pry the hooks open?