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As we enter the always-busy month of August and the important auction sales at the end of the month, the paper money market, both U.S. and World, are in great shape.
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Obverse Description
Portuguese text; José Eduardo dos Santos & António Agostinho Neto
Reverse Description
Portuguese text; coat of arms; birds flying over dam at Kapanda
Catalog Information
GSID:
85513
Variety:
Sig 15: Silva Prefix OA
BNB #:
B551b
Pick #:
P158
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Subject: I would like to contribute catalog info to CDN for Sig 15: Silva Prefix OA
Body: Referring page: https://www1.greysheet.com/prices/item/sig-15-silva-prefix-oa/gsid/85513 GSID: 85513 Title: Sig 15: Silva Prefix OA
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Bank Note Value History
Sig 15: Silva Prefix OA
Currency
Grade Range
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Values
Banknote Book (CPG) Values
11 DE NOVEMBRO DE 1976 Sig 1: Mingas/Lilolwa Prefix AA - BF Intro: 08 01 1977
Worth: $1 – $15
Diagonal red SPECIMEN ovpt front; all-zero s/n
Replacement: 1st prefix letter Z Unconfirmed
11 DE NOVEMBRO DE 1976 Sig 1: Mingas/Lilolwa Prefix AA - BA Intro: 08 01 1977
Worth: $1 – $18
Diagonal red SPECIMEN ovpt front; all-zero s/n
Replacement: 1st prefix letter Z. Unconfirmed
11 DE NOVEMBRO DE 1976 Sig 1: Mingas/Lilolwa Prefix AA - BR Intro: 08 01 1977
Worth: $1 – $15
Diagonal red SPECIMEN ovpt front; all-zero s/n
Replacement: 1st prefix letter Z Unconfirmed
11 DE NOVEMBRO DE 1976 Sig 1: Mingas/Lilolwa Prefix AA - AT Intro: 08 01 1977
Worth: $1 – $15
Diagonal red SPECIMEN ovpt front; all-zero s/n
Replacement: 1st prefix letter Z Unconfirmed
11 DE NOVEMBRO DE 1976 Sig 1: Mingas/Lilolwa Prefix AA - BG Intro: 08 01 1977
Diagonal red SPECIMEN ovpt front; all-zero s/n
Replacement: 1st prefix letter Z Unconfirmed
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Events
Heritage Auctions: US Currency Tuesday Select Auction
Location: Heritage Auctions
Tuesday, June 2, 2026
Heritage Auctions: World Paper Money Tuesday Select Auction
Location: Heritage Auctions
Tuesday, June 2, 2026
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Location: Heritage Auctions
Wednesday, June 3, 2026