Based on the pictures I would say that is a Sears Farm Master 1200 egg incubator. I personally don't believe the Farm Masters were built by Leahy. All Leahys I have seen have the heat element and water pan at the bottom with the fan at the top front blowing toward the rear. The Farm Master has the heat and water pan at the top with the fan blowing forward across the heating elements and the water pan. Hard for me to believe that the same manufacturer would use two such radically different designs. Trays, turners, thermostat setups are all different too.
That's just my opinion and I'm open to being convinced otherwise.
I have a copy of the Farm Master instructions on file. Anyone needing/wanting a copy PM me your email address and I'll get it on its way.
db