Scott National Series Album Pages: U.S. Regular and Regular Air Plate Blocks 1918-1991 (99 Pages). Prior to 1992, U.S. plate blocks were located in more than one position on the sheets. In addition, the trimming of the plate blocks with margin selvage was not uniform. These factors made it virtually impossible to design accurately sized boxes. Therefore no pages were produced for Regular Plate Blocks prior to Scott #551. The Regular Air Plate Blocks begin with Scott C1.
Size: 10 x 11.5 Hole Punch: 3-Ring & 2 Square Post Series: National
