I think what you have is two :

Recirculating (only) round type heater 1947-55 1st series (round heater core) defrost to floor air control was done manually using a lever located on the heater box.

How do they mount, which way is up,
Check letters and numbers on attached photos.

Don't know about motors though. This might help

Check HERE FOR MORE INFO .

xfiles
Attachments