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Brixton Chrome

Lot #114 Canada #454ii 1c Chocolate, Northern Lights and Dogsled Team, 1967-1973 Centennial Issue, Fine NH and VFNH LL Corner Blocks on Two Different Hibrite Papers

Lot #114 Canada #454ii 1c Chocolate, Northern Lights and Dogsled Team, 1967-1973 Centennial Issue, Fine NH and VFNH LL Corner Blocks on Two Different Hibrite Papers

An interesting pair of lower left corner blocks of the 1c Northern Lights and Dogsled team from the 1967-1973 Centennial issue, printed in the chocolate shade, and on two different hibrite papers, as follows:

  • 11 on the Freeman/Irwin scale, with streaky dex gum.
  • 12 on the Freeman/Irwin scale, with smooth dex gum.

Although Unitrade and Harris list HB paper, there are actually at least 3 and most likely four levels of hibrite paper, that differ according to how bright the bluish white glow is. The Freeman/Irwin scale generally defines hibrite as at least 9 out of 12 on their 12-point brightness scale. Some of the hibrite papers exist with hibrite flecks visible in the paper.

The 1c sheet stamps printed by CBN were printed in a number of different shades, depending on when the printings were made:

  • Plate 1 and 2 printings made between 1967 and 1968 tend to be in shades of violet brown or brown.
  • Plate 1 and 2 printings made between 1968 and 1970 tend to be printed in shades of chocolate and reddish chocolate.
  • Plate 3 and 4 printings made between 1970 and 1971 tend to be printed in shades of deep brown, chocolate or reddish chocolate.
  • Plate 5 printings made between 1971 and 1973 tend to be printed in shades of reddish brown, though chocolate shades are also found.

The collage shows the differences between some of these shades, though they are easier to see in the flesh for some reason.

The gum used on all printings to 1971 is dextrine, but within this category, there are a number of different types, which differ by the way the gum appears, when viewed in light:

  • Early printings have yellowish gum that appears either completely smooth, mildly streaky, or very streaky, and has a semi-gloss sheen.
  • Later printings made toward 1970 have gum that has a distinct satin sheen, and can occasionally appear grainy.
  • Plate 3 and 4 printings made between 1970 and 1971 often have a gum that appears mottled and "sponged on". This is a very distinct look that is not seen on the earlier plate 1 and 2 printings. However, the normal smooth and streaky versions of the dextrine gum is also found on these printings as well.

The PVA gum used on the plate 5 printings, shows very little variation, but a subtle difference can be found in the sheen and thickness of the gum, with the earlier printings having a thicker gum with a satin sheen, compared to a slightly thinner gum that has an eggshell sheen.

I have not checked the perforations on these blocks due to time constraints. However, they could measure 11.9, 11.95 11.85 or 12 on either side, and can exist with any combination of these measurements.

Unitrade values these blocks at $10.50. The blocks offered here grade 70 and 80.

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