That is not the serial number. It is the Patent Number. The serial number is found below this number. The Model 37 I have has this patent number on it and the serial number is 24071. I would also like to know the manufacture date of this rifle.
Impossible to answer without knowng who made it.
1973 - Ithaca Model 37 Featherlight
Made in 1964
100-400 USD depending on condition.
with that s/n the gun was mfg in 1969, but if it has 37 in front of it then it was mfg 1973-74.
Built in 1943.
new in box lists as 600 lowest quality is 200
By the number 762694-2 you can look it up here you may have to look more in depth as in the details of the gun and serial number