Patent number is not relevant. Value depends on age and condition.
According to my records it was made in 1910. (From "Ithaca Gun Company: From the Beginning")
sorry the model is L37 20 GAGE SERIAL 178174
1946
1000.00
It appears that the Ithaca in question was made in 1969
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.
Your serial number indicates that your Ithaca shotgun was made in the year 1920.
http://www.diamondgunsmithing.com/page5/page23/index.html
It sounds as if you have a Ithaca Crass model shotgun,that was produced in the year 1903 by your serial number.
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.
! would think the gun is worth $275.00. not sure what the s means. That could add another $50-100 to the value UPDATE: From the Serial Number provided, this is a 1983 model Skeet Shotgun. I think it is a shame that someone would answer your question and have no idea what the S indicates.
Impossible to answer without the serial number
1924
According to the serial number, you have a Crass model gun. The manufacture date is around 1898. Check out www.ithacagunrepair.com.
What is year of manufacture of a Browning Shotgun A-5 with serial number 01553NP111?