Another view of the crowd. No, I'm not going to name all the people in the photo... Sorry!

For some reason, it seemed nearly everyone has a CD 149 "Burbrook" on their table. Robin Harrison commented in a post

"From 1969 to 1974, I found a number of CD 149's in service on fire alarm circuits, and got insulators from fire stations, and fire alarm supply companies throughout eastern Massachusetts. They seemed to be used commonly in this capacity in New England. I'm sure I got, or saw them on lines in Concord, Lexington, Bedford (which also had amber T.H.E.s, which I saw but never got!), Lincoln, and many of the towns between Bedford and Boston."

Woody comments on this piece: http://www.insulators.info/articles/woodward/CD 149bur.htm

Perhaps why there were a number of those pieces here.

Another insulator that many people had was the CD 259... Why would you think many people would have these? Also several CD 233 Pyrex insulators. Or perhaps we noticed these particular pieces because we also had them for sale at out table :)