I know nothing about this typewriter, beyond the fact that it was made by Konryu/Citizen Buisiness Machines in Japan. Its serial number is 009444. Can anybody tell me anything about it? If so, please either comment, or send an email to typewriterresearch (at) gmail.com.
UPDATE: Based on online sales in Portugal, NASCO may be a Portuguese brand.
Lowest escalator ceilings I have ever seen. I think that they are around 6'6 maybe...
NASCO in Third Avenue Lobby
A 1968 architectural model of the building in the 4th Avenue lobby