how can i find out the value of my antique clock?

Question

it's a seth thomas mantle clock from the late 1800s

Answer 1

here are some about.com links for appraising antique clocks
http://antiques.about.com/od/clockspriceguides/index.htm
http://antiques.about.com/cs/clocks/index.htm

Answer 2

Is it about 12 inches at the base and goes up to form a round top, made of wood, key windup? They made a bunch during that time period...probably no more then $100.00 if it's in good condition and works.