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Scott Number: RB17c Collection Reference No. for Communications: 2271

Denomination/Type: Proprietary: 6c violet blue, watermark 191R, rouletted

2023 Scott Catalog Value: $2200.00

Estimated Retail Value: $1200.00 What is this?

Cancel Method: Handstamped - Multiple Line

Cancel Color: Magenta/Purple

Cancel or Company Type: Unknown

2011 Philatelic Foundation certificate. Horizontal pair. One of only 8 multiples reported.

(click on the image below to see a larger picture of the cert.)