1946
By the serial #
500K sold between 61 and 78
The double is the last model NID (New Ithaca Double) mfg by Ithaca. This one was mfg in 1927. Depending on condition and gauge you may have a very desirable shotgun.
The same year you shot your gradma you freak
44
nothing
1947
On the bottom of the barrel where it meets the chamber.
Ithaca Model 49, made c.1968-1970 or so. Value ranges from $50-$125. sales@countrygunsmith.net
With the recent demise (again) of Ithaca, there has been a slight upward trend in the older models including the 66. If in very good condition, $100-$150. sales@countrygunsmith.net
i saw a model 66 single shot lever action on guns America for 285.00
1963-1978