Hallmark Help! Can't tell if this is J.C Moore & Sons?

I’m NOT a silver buff and hope you all can help me. I have some silver that I can’t identify. The silver is marked STERLING and the three marks are: Crown, M, and passant lion.

The M seems to match the J. C. Moore & Son, but it’s not an exact match. And, the passant lion is throwing me off. What do you think? Thanks!!

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