During the early 1970’s the Ithaca Gun Company attempted to redesign the shell stop system of the M37 that had been used since it’s introduction in 1937. The original shell stop required a machining operation and hand fitting. There would be a significant cost savings if the system could be re-designed to eliminate the hand fitting. In 1975 a new design was implemented that eliminated all machining. The company decided that these changes were of such signifigence that a new serial number sequence was necessary to identify the guns manufactured with the new shell stop system. The new sequence was prefaced with 38. After about six months of production the company decided that the new system was less than satisfactory and they returned to the old design and serial number system prefaced with 37. There are very few serial numbered “38 “ guns in existence with the redesigned shell stop and slide handle. It is truly a collector piece representing an interesting niche in the life of the M37 repeater and is a very unique item for the Ithaca Model 37 collector. This is a 12 gauge gun serial number 381019933, manufactured in 1975, with a 28 inch vent rib barrel choked Mod. The gun is in 99% condition and appears to be unfired. Must ship to an FFL. Will ship to CA. 3-day non firing and non disassembly return policy.