U.S. Plate Blocks - Semi-Postals

Semi-Postal Stamps are new to U.S. Stamp Collecting. First introduced in 1998 as a first class rate stamps with an 8c surcharge to contribute toward funding for breast cancer research, there are now 5 semi-postal stamps issued by the U.S. Post Office, all of which have Plate Numbers for collecting.
U.S. #B1 Breast Cancer Research PNB of 4
Code: USPBB001
Price: $4.80
U.S. #B1 Breast Cancer Research Semi-Postal Plate Number Block of 4... more info
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U.S. #B2 Heroes of 2001 Semi-Postal PNB of 4
Code: USPBB002*Counter
Price: $4.80
U.S. #B2 Heroes of 2001 Semi-Postal Plate Number Block of 4... more info
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U.S. #B3 Stop Family Violence PNB of 4
Code: USPBB003
Price: $4.80
U.S. #B3 Stop Family Violence Semi-Postal Plate Number Block of 4... more info
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U.S. #B4 Vanishing Species PNB of 4
Code: USPBB004*Counter
Price: $4.80
U.S. #B4 Save Vanishing Species Semi-Postal Issue Plate Number Block of 4... more info
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U.S. #B5 Breast Cancer Research PNB of 4
Code: USPBB005
Price: $9.60
U.S. #B5 Breast Cancer Research Semi-Postal Plate Number Block of 4 Reissue of 2014 - Plate Block #B11... more info
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U.S. #B7 PTSD Semi-Postal PNB of 4
Code: USPBB007
Price: $6.50
U.S. #B7 PTSD Semi-Postal, Plate Number Block of 4 Showgard Mount Size: SG100... more info
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