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Scott Number: RB71 Collection Reference No. for Communications: 3726

Denomination/Type: Proprietary: 10c dark blue, watermark 191R, perf. 11

2025 Scott Catalog Value: $ 560.00

Estimated Retail Value: $ 250.00 What is this?

Cancel Method: Uncancelled

Mint full gum block of 40, with creases and heavy hinge reinforcement. By far the largest known multiple (the largest block in the Curtis Census are several blocks of six).

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