P85, P89, P90 and P91
P93 and P94
GP100 - Super Redhawk
SP101
Mk II
Blackhawk, Vaquero and Single Six
Super Blackhawk (Square Trigger Guard)
Redhawk
Security Six and Police Six (Serial # Prefix 151 & above)
Speed Six (Serial # Prefix 151 & above)

Many of the revolver photographs you will see are taken on Smith & Wessons. However at least one photo in a wood group should be on a Ruger so you can get an exact idea of how it looks. The grips for these revolvers are so close it is easy to see how each of the other woods and options will look on you gun.