From left to right, we have: Tall with Large B, Large Reverse Dome Number; Tall with Smaller B, Small Reverse Dome Number; Medium with Smaller B, "Correct" Dome Letter & Number; and Small with Smaller B, Reverse Dome Number. At least, that's what I've been calling them. I am compiling lists of dome numbers for each respective style, and will eventually branch out into the other CD 145 "B" embossing codes. Please send along any info to the above e-mail address concerning what dome numbers you have found, reversed or corrected, letter & number combinations, and anything else you feel is pertinent (colors each style come in, etc.) Anyone interested in the dome numbers found so far can also e-mail me for that info. Thanks for looking!