Found these three styles: 1. Side Tab Type (with a little steam) 2. Otis Patent 1851 SCA with nice milk (no date and split point). 3. Cross Top Type (dark purple). My question is how many types of LRI's are purple or sca colored? Please reply, no price or color guides are made for these insulators. Yes, I know the Side Tab is upside down. The picture was taken when I was still a "LRI--rookie". These are the three that got me started! Bought at San Jose National 2005.