Matthew Grantz, Tim Grantz at their table talking to Mike Donnelly. Tim had a really large Pyrex power piece for sale, a CD 328.2 - as can be seen about midway down the stretch of tables. He was hoping winter was over with, and decided he could remove this ballast/boat anchor from his trunk and sell, since it is one of the rarer Pyrex power pieces. The 14th Annual Allegheny Valley Insulator Show at the VFW Hall in Natrona Heights, PA on Saturday, April 5, 2014.