Well, it seems B & T is short for Bronson & Townsend Co. and they were hardware jobbers.
Dates of operation are sketchy. Most often sources quoted the dates 1923-1938 but these dates are wrong. I guess they also sold knives and these wrong dates show up in some knife value/guide books. I saw in my research a billhead with 1906 on it. The original President of the company Walter Bronson retired from the company in 1906 so it had to be in business for some years before that. But in my research,except for a couple past razors for sale, all I was able to discover was general business information. No good detailed information on their razor sales.
Attachment 197868
The Restored Razor website has one for sale now and says it is manufactured by the Boker Tree Brand. How the seller knows, I don't know.
Perhaps I'll be able to find out more.....