I have a revolver that I can not find in S&W standard catalog 3rd ed or Blue Book of gun values. Plenty of 317 Airlite but NOT the 317 airlite Ti. blk grips, LTG4xxx AirliteTi on right side of sideplate just above trigger. hollow trigger. Would like to know when made (99 I think) how many before discontinued, and of course value. Thanks! [email protected]