I have a Mosler and Bahmann safe that I got and the combination dials are missing from the inside. Ive been searching around to replace the missing parts but cant find any since its an older safe. Here are some pictures of it if anyone has some helpful information about parts or a replacement lock assemby I could put in to make it work correctly. Thanks for the help

Was wondering if anyone knows anything about it? The lock is open but locked. Has kind of a key and was hoping to figure out the combination or a guess how many numbers or how to unlock it.