Cross Gutter Block
“Gutters” are the margins between panes in a full sheet of stamps. Cross Gutter Blocks are four stamps connected by a horizontal gutter intersecting with a vertical gutter. This format is the scarcest of the gutter varieties.
Vertical Gutter Pair
A gutter pair consists of two stamps straddling a wide margin called a “gutter.” Here the gutter is vertical and the stamps horizontal. #752 was printed in sheets of 400 on a rotary press. The other 5 pairs are from small souvenir sheets printed 9, 20 or 25 to a sheet on a flat plate press. The gutter pair is made up of two stamps from adjoining souvenir sheets, with the gutter between the two souvenir sheets.
Horizontal Gutter Pair
Horizontal gutter pairs are two stamps straddling a wide margin between the top of one stamp and the bottom of another. Each stamp is from a different pane on the stamp sheet.