Model 49
Yes it will take 22LR and 22 short
Yes
The Ithaca rifles are rimfire. Most are .22LR, but there is at least one .22 magnum.
Winchester has never made a model 39.Could be reffering to a Marlin model 39 lever action rifle in .22LR?
You may be able to find an instruction manual on eBay or Auctionarms.com
It was only made from 1962-1965 and it will be stamped with a date code which can be looked up here: http://remingtonsociety.com/rsa/questions/barrelcodes
If in very good condition it should bring $125-$150.
Ithaca Model 49, if .22LR, sells for $125-$150 in excellent condition. The same gun in .22 Magnum might bring up to $200. sales@countrygunsmith.net Currently (2-2012) a Model 49 in .22LR can go from $175 to $225 and if a .22 Mag a bit more.
this rifle should be marked .22S,.22L,and .22LR.
1961
Blue Book of Gun Values
Impossible to answer without a year.