Try pawn shops, gun shows, gun shops, estate sales, garage sales, on line auctions, want ad, for sale ad.
Impossible to answer without a DETAILED description of ALL markings.
Nearly all of the older (pre 1995) Smith and Wesson products had the term "Marcas Registradas" meaning trademarked or equavalent to the ™ or ® in spanish stamped near the S&W logo. Smith and Wesson made many revolvers and "pistols" in Cal .22 long rifle. You would have to specify the model and condition of the pistol for any value to be estimated.
A locksmith should be able to help.
Early eighties.
Made in 1968.
10-100 usd
25-50 USD or so
No way to know. Call S&W and they can tell you when it was shipped. It could have been in the warehouse for weeks or months.
Need the serial number and full detailed description to include the serial number to answer.
Insufficient information to answer the question. Identify the item in question and resubmit.
Made in 1981
That is a 1960 gun and should be a '4-screw.' In excellent shape, it would list around $800