Hello. This stamp is not in my possession - but just trying to learn as always - I do not assume it is a 136a - which I believe means an I grill vs. H grill. thoughts on the Scott number for this stamp? Is it really a 136a? my 2010 specialized US catalogue does not show a 136a (only a 136) from what I can tell. Also is the intro of the catalogue only where the grill description is done in detail (aside from stampsmarter of course :) - I can't seem to find the I Grill description on my catalogue but could be user error :)
As always, your feedback is appreciated. I enjoy interacting on the site.


What I read from SM: "I" Grill - Used only on some 1870 Banknote values, is smaller than the "H" grill, usually 10 vertical rows only; going to try to count.