These would've had a colac paint similar to the 117-119 lamp series. This paint did not hold up well on household lamps much less a stove that would see outdoor use as one can imagine. Looking through shipping records there was several more of these shipped out than the 456, yet still a small number compared to later stoves. A total of 5,042 were sent out from 1929 through 1932.
This example is pictured with a reproduction grate.
If you have more info to add to this or the 456 model please feel free to contact me to have it added.