The serial number indicates Ithaca manufactured your Model 37 in 1956.
Date of Mfg. is 1947
1951
1950
1947
1971
serial #
http://www.diamondgunsmithing.com/page5/page23/index.html
There's a list of serial numbers by year at http://ithacagunrepair.com/page5/page23/
There's a list of serial numbers by year at http://ithacagunrepair.com/page5/page23/
1906
The manufacture date of western field model M782 with the serial 830424 is 2012.
This model was manufactured from 1973 to 1978 by Erma Werke in West Germany for Ithaca.