I finally picked up a nice White U-670A to add to the collection from the Springfield 2012 show this year. It has the Fred M. Locke 1-9 stamp on top shell. I never see these for sale and funny enough there were two of the little uniparts for sale on different tables side by side. The Springfield show should be on every insulator collectors list to visit with many glass, porcelain, and other oddities to see. Thanks to Ken Willick this Fred has a new home.