I still use that little trick most days, Steve - eternally grateful for that! I use it for variety identification with ones that just won't stick in my head - like the 1887 halfcrowns. The book descriptions are along the lines of "wavy ermine", which means nothing to me, but a quick glance at the popup photo and identification is instant. So the 1+A, or whatever, goes in the field contents, and a snapshot goes in the comment.