Depends on model and condition (we cannot tell either from a serial number) but could range from $100-$300.
50-250
50-260 or so
50-230
75-275 or so
50-300 USD or so
50-150 usd
I've seen them sell for anywhere between $185 and $250.
5-130 USD or so
200-300 USD
Blue Book of Gun Values will get you in the ball park
50-100