You probably seen mine. I have the top handle, its orange and based on the 25D.
I have another like the one pictured and it is a Poulan 361. Mines up and running really well.
You don't see the Aldens saws much at all, the 361's every now and then but the little one I have is the only one I have seen.
Aldens was a mail order outfit back in the 70's, kinda like Montgomery Wards was as well and they had a few brick and mortor stores. I remember the Aldens catalogs that my mother had back then.
The name was later changed to Aldens/Shoppers world and there used to be one not that far from here in Highland In.
Another saw that I have thats never seen too much is a Gambels/Skogmo which also got saws badged by Poulan.
In my serching I found that Gambles/Skogmo ended up owning Aldens.