2 cent Plumer's Boot Stamp

[Ebbo]

Just purchased this, really can't find any info on it, can find info on the one cent plumer but nothing on the 2 cent.

Image here:

[Ebbo]

It is a Cinderella, the one cent supposedly has only 12 known, if I read correct, which I probably didn't It listed a coupe other stamps with it so I would guess the one cent would have more than 12. A one cent sold for 60 dollars on eBay recently.
Given my bad luck recently, maybe I just bought the only know 2 cent in existence, which would suit me just fine but probably there are a gazillion of them out there.

[Ebbo]

I only paid 5 dollars for it, by the way in case any one was wondering.

[Ebbo]

It is mint unused.

[Ebbo]

Also forgot to mention, the year of issue is 1861.