Can anyone identify these vintage saw remnants?

[Mark71gtx]

I picked up a chunk of an old saw on my last trip to dad's. Anyone have any idea what it might be? The bore appears to be 2 1/8"

 

[cobey]

Power products two cycle

 

[cobey]

Power products has a removable head

 

[Mark71gtx]

Any idea of the brand this saw is? It appears to be orange or a light red. The circles in the housing make me think David Bradley, but I can't find a model that resembles this one.

 

[Lee H]

Looks like a Power products AH-47 motor out of a Lancaster saw.

 

[Mark71gtx]

Awesome! Thanks! Upon some digging, it looks like a Lancaster 50-IL