A friend of mine left me a few hand guns. One being an older model 10. It is a 4 inch, 5 screw, hand ejector, fixed sights, 38special CTG, serial# C-164946. It's in great shape and has a set of Franzite grips that looks like they have been on it since it was new, and a little thingy on the trigger that makes it wider. Does anyone know the approximate year it was produced.