Why Gutter Pairs and Cross Gutter Blocks are Collector Favorites
In stamp production, a “gutter” refers to the blank or unprinted space that appears between panes of stamps on a printed sheet. When two stamps are connected by this gutter, they form what is known as a gutter pair. If a group of four or more stamps is connected by this space, it is called a gutter block. A cross gutter block occurs when four panes of stamps are connected by two intersecting gutters, creating a block of stamps with a cross of unprinted space or additional design elements at its center.