The part about the US gold $2 is a misprint, ignorance, or a fake.
A gutter fold note. take a strip of paper, fold it in half. Take the top half and fold it back again so you now have the paperlaying flat with a small double folded area in the center of it. Draw a few lines across the strip of paper so that they cross the folded area. (A rubber stamp will show the effect even better.) This represents the printing on the note. Now grab the ends of the strip of paper and pull them so the paper unfolds. See how the lines or stamping are now broken by a blank area? That is a gutter fold. The paper was double folded, printed, and then opened. Some times opened between printings, sometimes opened after printing and before cutting, sometimes not opened until after cutting. The first two will be normal sized notes, the last one will be larger than normal.
A gutter fold note. take a strip of paper, fold it in half. Take the top half and fold it back again so you now have the paperlaying flat with a small double folded area in the center of it. Draw a few lines across the strip of paper so that they cross the folded area. (A rubber stamp will show the effect even better.) This represents the printing on the note. Now grab the ends of the strip of paper and pull them so the paper unfolds. See how the lines or stamping are now broken by a blank area? That is a gutter fold. The paper was double folded, printed, and then opened. Some times opened between printings, sometimes opened after printing and before cutting, sometimes not opened until after cutting. The first two will be normal sized notes, the last one will be larger than normal.


















