Hopefully I am in the correct form . I need some help identifying a Moki 5 cylinder radial that came with a Bipe that I recently purchased. It is stamped 250415. I guessing that it's a 250 and the 415 is a serial. I purchase this and several other giant scales from a lady who's husband has passed. I'm new to Moki and intend on following this form. I have a lot to learn and more questions to come.