Cool, thanks Rod for posting the pictures, they are awsome. While I can't positively verify that being a B/A derrick, I would think that it would be a strong possibility that it is, as B/A had a very strong presence in the United States. For more history, check out Alex Colwell's site www.britishamericanoil.ca.
As for tonite, I think this will be the last for my B/A collection, I bought an embossed B/A t.s.b. binder at an auction and loaded it up with pictures, invoices,booklets, magazines, flyers,etc,so I will finish off with a few examples of what is in the binder