Several months ago I bought a second used set of sights for my ’27 model 52. And when the arrived I realized that they are definitely not exactly the same as the original set. First off, it is missing the 1919 patent information stamped on the side of the sights. Secondly instead of the graduations being in yards like the original set. The "new to me" set is graduated totally differently. I would like to see if anyone has any idea what year a model 52 these came off of, or if it came off of something else entirely. Obviously one of the windage knobs is incorrect and it looks like its had a bit of other work done on it also. I am just curious what it actually is.

Thanks,
Colin

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