For those who don't know, Peasant is an inofficial constructed format allowing cards from all expansions - the only limitations are that you aren't allowed to use rares, and your deck may only contain a maximum of 5 uncommons. If it was ever printed as uncommon or common, you can bring it along.
Now, there's this card called Mishra's Factory that I'm really fond of, and that I'd like to include in my deck. Mishra's Factory is listed as uncommon, and as such can be used. So far, so good.
The rarity of one of its alternative-art prints is listed not as (U1), but as (C1) instead - which is weird because they're from the same set, and any later reprint too is listed as uncommon.
Now, here's my question: Is this particular old print in fact common? And as a consequence, does that mean I may freely run a full playset of Factories in Pearsant (or Pauper, even) without using up my uncommon slots on them?
If anyone could clear this up a bit, they'd be more than welcome.