What is the condition of the gun and the barrel length?
1973 - Ithaca Model 37 Featherlight
I recently sold mine for $325
Technically they are both "Featherweight", but the Deerslayer had a shorter barrel with rifle sights for shooting slugs or buckshot. It could also be fitted with a scope.
The Model is "37," with the grade identified by a name (such as "Featherlight" or "Deerslayer") or a letter. Otherwise, it is a Field Grade, either Standard (2 3/4" chamber) or Magnum (3" chamber). I am aware of no public listing of Model 37 manufacture dates, but IDSA Books publishes Ithaca Featherlight Repeaters. They're on the net. However, your serial number denotes a fairly recent manufacture). 1973
Your Model 37 was mfg. in 1975.
You will need to contact Ithaca. Published sn's do not go that high.
Yes, they did make a 28 guage pump featherlight. I have one myself