Not familiar with a Hawes Dueling pistol. However, they did make a top break .22 Favorite Single Shot Target Pistol- a reproduction of the Stevens #35, chromed fame, blued barrel. $100-175, depending on condition, made 1968-76.
Try gun shows, pawn shops, gun stores, want ad, estate sale, garage sale, egunparts
10-100 USD or so
$250
German made.
25-50 USD or so
Most of the Hawes .22 revolvers are valued at $100-$175, depending on exact model and condition.
Hawes Firearms was an importer of reproduction firearms in the 1960s. The value of any gun is based on the exact make, model and condition. We need all 3 factors, you gave us 1 factor. No answer is possible without more information.
-10-100 USD or so
Want ads, e-gunparts.com, gun shop, gun show.
Not sure it had a model number. Made in Italy and imported by Hawes and others.
Keeley Hawes's birth name is Claire Hawes.