I would procede very carefully, since what appears to be a reblue to you, may be an original finish.
Model 36 production started late in 1935, with "c" (lower-case) prefixed serial numbers, AND a high-polish blued receiver top.
1946 production was also "C" prefixed.
Yours could just be a 1945 blue job, flaking - and worth a bit as-is to a collector.
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