You have told us the caliber (that it uses the .44 Special cartridge -that is what CTG means) but no description of the revolver- make, model, condition. Those all drive the value of a firearm. Give us a complete description, we can try to get you a ballpark value. Sorry-
National Treasure - 2004 is rated/received certificates of: Argentina:Atp Australia:PG Brazil:Livre Canada:PG (Alberta/British Columbia/Manitoba/Nova Scotia/Ontario) Canada:G (Quebec) Chile:TE Denmark:11 Finland:K-11 France:U Germany:12 Hong Kong:IIA Iceland:L Ireland:PG Malaysia:U Netherlands:12 New Zealand:PG Norway:11 Peru:PT Philippines:G Portugal:M/12 Singapore:PG South Korea:12 Sweden:7 Switzerland:10 (canton of Geneva) Switzerland:10 (canton of Vaud) Switzerland:12 (canton of Zurich) Taiwan:PG-12 UK:PG USA:PG (No. 41246)