Yup the S&W model 10-7 was manufactured in 1977. Probably part of shipment returned to the US market when the RHKP replaced their 10-7 and 10-9 to 10-10 heavy barrel in the early 90s. When it first released to the public in the US back in the late 90s, most are only sold for $250USD a piece. Now these days as it became somewhat a hard to find collectable item (I only saw about 10 pieces being circulated around the nationwide 2nd hand market in the past 2 years), the price tag ranged between $600 to $800 USD depends on the condition. The Colt Police Positive I have was made in 1970, it's priced at $450 and actually cost me nothing (thanks Trump for the covid stimulus check
). But I've seen one sold for close to a $1000USD in prestige condition.