Britannic 1B
A larger and newer model of Britannic. This one has tens' carry in the revolution register, so the numbers no longer go red. Clearing for the input has been moed to the outside, possibly to accommodate the tens' carry inside, and there is a quick-clearing mechanism which clears the register with a single half turn of the peculiarly shaped thumbscrews. Another very nice detail testifying to the quality of the finish on the machines can be seen looking at the bottom edge of the wood cover - there is a rubber seal to prevent dust from coming in when the case is closed. Its purpose is defeated by the large crack in the cover, but still, it is a kind of attention to detail not seen anywhere else, in a machine range nearing the end of production well into the 1930s, when wood cases elsewhere were long gone. For the final spasms of Guy's calculating machine company before being taken over by Muldivo, see the story on Alan Turing's calculator. The address for Guy's calculating machines was 12 Truro Road, Wood Green. The building appears to be still standing, you can find a picture here.
