That is the .32 HE, Third Model. It is the I frame. I don't have serial number date info, but they were made from 1911 to 1942. They are nice little guns, and (cries of "mouse gun" to the contrary) nothing to stand in front of. Value, as usual, depends on condition. 100% will run to $350+, but the average will go around $150. There is little collector interest unless in near-perfect condition, as there were so many made, serial numbers approx 263,000 to 534,532, or over 271 thousand.
Jim