Finally got some time to dig out my S&W revolvers to take some pictures.
Top left-Model 629-6" 44mag
Middle left- Model 627-5" 357Performance Center 8 shot
Bottom left- Model 66 357 Circa 1978
Center- Model 351PD 22mag Airlite
Top right- Model 317 .22 Airlite
Center right- Model 10-7 38spl
Bottom right- Model 10-8 38spl

Also the holsters are interesting as well. Bottom left is a slip on holster made by Ray Sullivan in 1978 well before Sullivan's was picked by Randall as their next sheath maker after Maurice Johnson. The other 2 Suilivan slip on holsters were all made by Greg Gutcher.
The newer western style holsters were made by leather artist, Tom Angle, Jordan Valley, Oregon, and the darker, older holster is an H.H. Heiser from the 40's.

Pap