Andy what is your knowledge of how the framebuilding knowledge at Cyclery North got started? Over on CR I suggested the link to Eisentraut fixtures that everyone else recognizes. I'm suspicious that CN must have obviously had some interaction with Albert because otherwise they would have never come up with that fixture concept. Eisentraut got his start at Watsyn's in Chicago before he went to Oakland. I also remember he had some link to a Chicago store back in the early or mid 70's. I hesitate to mention names because I remember only vaguely and I'm too lazy to try and research to be sure. In other words when Albert was active teaching framebuilding classes around the US, it would have been natural for him to teach one in Chicago too. It is possible that those fixtures were made by a local Chicago machinist using Albert's original fixtures or maybe Albert had a bunch made and sold them to students? .