I'd like some opinions on this imperforate 1c Franklin.

I believe that it's a Scott 6, Type Ia, based on the completeness of the lower left and right ornaments. But I'd also not like to get my hopes up that it's one of the rarer types (so convince me that I'm wrong, I suppose?) It's also possible, given the lack of margins on my stamp, that it is an 18 or 19 with the perfs trimmed off.
If someone is able and willing, I hope my scan is high enough quality to permit the stamp to be plated. I scanned it at 4800 dpi, which was the highest I can do at home.