50-230
I've seen them sell for anywhere between $185 and $250.
200-300 USD
Blue Book of Gun Values will get you in the ball park
50-250
50-260 or so
No published sn data; 50-280 USD
Late 60's import made by J.P. Sauer. Value range 150-275 USD
-10-100 USD or so
There is no way to give you an exact age. Hawes firearms serial number data is not in the public domain. Value is based on condition, finish, barrel length, grips, sights, etc.. Withou more information, the best estimate would be in the 25-175 USD range, give or take.
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.
50-300 USD or so