Its my understanding that the original Langstroth box was a double glazed brood and super surrounded by a hinged sectional, lidded wooden outer box with the air space between the inner double glazed box designed to be filled with insulation for winter similar to the wbc. The double glazing was there for the same reason plus it allowed condensation to form between the pains keeping it away from the bees and comb to prevent mildew and mould growing inside the hive.
The brood box volume wise is fractionally larger than a national and as the British black bee ( may she RIP) tent to have smaller nest it "may not" of suited them.
Check me if I'm wrong guys
I'm surprised that the Warre hive with the addition of frames wasn't taken up but the Japanese seem to think it works just fine with out frames and with a 1 square foot foot print you could certainly pack a lot of them into a small yard .
The brood box volume wise is fractionally larger than a national and as the British black bee ( may she RIP) tent to have smaller nest it "may not" of suited them.
Check me if I'm wrong guys
I'm surprised that the Warre hive with the addition of frames wasn't taken up but the Japanese seem to think it works just fine with out frames and with a 1 square foot foot print you could certainly pack a lot of them into a small yard .