I supplied that info on Pipedia. The Oppenheimer sourcing was confirmed for me by its former CEO, John Adler, a few months before he passed away. Most of the Charatans are easy to spot since they made their "Barlings" using their own shapesThanks. I found info on Pipedia that said after the factory closed, they were made by Charatans, Oppenheimer and other unknown companies. So I'll add this 'non-Barling Barling' to my collection that also includes a couple of 'Barling non-Barling'. I think I only have two actual "Barling's made by Barling's".
My toes have been dipped and I'm pulling them out of the water.