I picked up a Stanley plane today that has me intrigued. Same size/shape as a #5, but heavier. It's labeled between the tote and frog, "C559 MP" (same on frog), "made in USA" in back of the front knob, and has a stanley lever cap w/ kidney shaped hole, the stanley blade is marked "H1205 (12-205)". The tote and knob are plastic, but of a heavier material than the cheap ones I see on new Stanleys.
The casting is thick and heavy, reminding me of a bedrock: one rib behind the tote, two in front forming a triangle pointing to the frog. The frog is also heavier.
I couldv'e sworn I read about Stanleys like this, but I can't remember where I read it.
Any help?
Thanks, H