They are all Gravelys. The yellow one is a 1968, the one with the plow is a 1972, and the one with the blower is a 1975. I guess it explains why the two Craftsman walkbehinds I just picked up are oldies also.
Sounds like an addiction meeting - - - there may be more somewhere - - -It all started with the yellow one, which I've had since about 1975, then...There are a couple more hiding too.
excuse my ignorance, but is it only elbow grease that raises blower on yellow machine?