I have read about the floating J. makes it harder for a novice like me to decide on when an earlier Model 49 no dash was made. Serial number reads 4J27xx.

Any idea when it was made? Can post pictures if needed.

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The American dream is alive

Hi

1971-2

Almost certainly dates to 1971 rather than '72.

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SWCA #590
"Colligo ergo sum"

The only time a numeral higher than 1 can preceed the J is during 1971-1972. As Goony said, it really has to be a 1971 gun.

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Gunsmithing since 1961