I have a s @ w 357 MAGNUM
stainless 6 in. barrel stamped SMITH & WESSON

on rh side is stamped S. & W. 357 MAGNUM onn the barrel

just below the cylinder on the RH side MADE IN U.S.A.
MARCAS REGISTRADAS
SMITH & WESSON
SPRINGFIELD, MASS.

UNDER THE GRIPS i FOUND: AHW 2545 ALSO ON MAINFRAME BY THE CYLINDER
when I open the cylinder up on the main case is stamped AHW 2545 and below that MOD 66-2

BY THE EJECTOR ON THE SWING ARM 59273

Can anybody tell me what model this was when it wasproduced, and any value? I have not shot it since I went overseas in 1996 for 10 years and was not allowed to take it with me.. I always thought it was a model 656 or something along those lines but I am no expert so I need help. Thanks in advance for amy unformation;

Under the grips additional stamps circled R 7566 and B21