if it's a 1911 45cal. pistol then it was made by Colt. the slide made be ITHACA, but the frame is Colt.
it often happened when guns were cleaned in the field. Also, if it's a pistol it was made in 1917.
You can tell how old your Ithaca gun is by the model and serial number
No way to answer. Serial numbers do not work that way.
We can't tell from a serial number alone.
You have a Ithaca Model 49 Saddle Gun which was mfg between 1962-1978.
Impossible to answer without the serial number
1905
You need to provide the serial number.
Look in "The Ithaca Gun Company - From the Beginning"
double 12 ga
No way to tell from SN only.
The serial number indicates your gun was made in 1955.
The serial number indicates your gun was manufactured in 1949.