[jocko]

Ok, now I'm REALLY confused...
I always thought:

Sport/Standard mirrors were the smallest available - normally see them on non-tow rigs, etc. Look like pic #1 (it's a 72, and I realize the base model mirrors were different in 67-68, looked more like 66 and prior mirrors with round head).

Also, always thought WEST COAST and WEST COAST JR mirrors were the hoop style that Tim displayed pics of above - Pic #2 here, just to complete the set.

And finally, I always thought below eyeline mirrors were the monsters for campers (pic #3) and granted, they had different style tripods and leg lengths for diff years.

Are we saying that #3 is not a factory mirror? And that below eyeline (on a SPID) is actually another term for West Coast or West Coast jr??