STAMP #: OTTAWA EXPERIMENTAL PRECANCEL

MINT/USED: 

TYPE: Block

GRADE: F

DESCRIPTION: 50c blue, Widow Weed Block of 4, OG, NH. A rare experimental precancelled top margin block of 4 from the famous "Ross Sheet". Catalogue value in Newfoundland Specialized is $500/ea. Top margin stamps (Pos. 3 & 4) showing major re-entries. See scan/writeup for the precancels intended purpose. Very rare & unique.