Canada #J28a-35a 1c-10c Carmine Rose, 1977-1978 Fourth Centennial Red Postage Due Issue, 5 VFNH LL Inscription Blocks Of 4 With Different Papers

5 VFNH LL inscription blocks of 4 of the 1c-10c carmine rose from the 1977-1978 Fourth Centennial Red Postage Due Issue, with different papers. The stamps are as follows;
• J28a – DF bluish white
• J31a – DF bluish white
• J32 – DF bluish white with large holes
• J34a – DF bluish white
• J35a – DF grayish

Unitrade values these at $6.25. The blocks offered here grade 75 and 80 as follows:

Centering/Margins: 45/70, 50/70

Paper Freshness: 5/5

Colour: 5/5

Impression: 5/5

Absence of Visible Paper Flaws: 5/5

Perforations: 10/10