6R28.1 (R&S 6-1) Scott # 43c The "5 on 6" or "The most remarkable variety in Canadian Philately" - W. Boggs
Plate Position - Plate B Position 25
Multiples: left margin block of 12 (pos 11-16, 21-26) ex Simpson
Confidence in identification: 100%
Notes: W. Boggs reported the first latent re-entry on the Six Cent. Later the extra lines were determined to have come from the Five Cent design. The most accepted theory is that a multiple value transfer roller was used in plate repair. Both the Five Cent and the Six Cent images were on the roller and over rocking caused part of the Five Cent design to be placed on a Six Cent image. Thus the term "5 on 6".
My friend, Ralph Trimble, is the author of the most up to date discussion of all the recent discoveries on this variety. Currently we believe that there are no less than 7 different 5 on 6 varieties. Click here to visit Ralph's web site.