Heater valve Super Clipper 1947, how to find?

Posted by Josef Lichtenberg On 2019/6/17 7:13:16

please is there anybody who could explain me how to find the heater valve? My car has got heater radiator with fan to defrost windscreen, and a radiator with fan underneath driver seat. I wonder how the water circuit is opened and closed? I can not find any valve or switch. I guess something went lost over the decades? thank you very much in advance for your reply, best regards Josef