I Have Also Link To A Great Web Site Regarding The Ever Changing
Ruger Single Action Grip Frames!
If You Have Any Questions and Need Somes Answers Along With Photo's!
Go To:  www.GunBlast.com 
I Recieve and Asked Questions All The Time Concerning Other Peoples Rugers As To What They May Have and What Grips They Should Be Buying Etc.
It's Really Difficult For Me To Know What You Have If The Owner Doesn't Know? So! Go To This Site! Its A VERY Imformative Web Site!
Also!
Go To; Tony Tinhorn's Grip Fitting Page For Tips from several people about Fitting your New Single Action Aftermarket Gun Grips To Your Gun!
This Site Should Help.   www.chipengelmann.com/Grips/Fitting.html
Will be adding More New Help Sites and Pages Soon! Check Back Often!