Hiya, hoping you can help me identify and date this lock I found at a flea market. I was able to figure out the combination by trial and error. Main body is made of steel; hexagonal number knobs are not steel or iron. There is a number stamped on the top, 1P30. The size is 2-5/8 inches wide x 3 inches tall x 5/8 inch thick.

I have spent some time searching online and haven't found anything even close. Thanks in advance.

Karen

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