I picked up an interesting straight sided SB 102 at the National. I took this photo of it next to another interesting Brookfield 102 that is squatty. The tall straight sided 102 has a SN 20 which I don't ever recall seeing before. But there are A LOT of different SN in 102 Brookfields. Both of these seem to be harder to find mold versions than a typical Brookfield 102.

I like the variation and quality control in the Brookfield pieces. :)