Whitman Expo
CAC approved and CACG encapsulated coins fared well in public sales during the month of September 2026.
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Obverse Description
Portuguese text; map of Africa as registration device; islands superimposed on house exterior; stylized waves; first president, Aristides Maria Pereira; embossed map of Africa
Reverse Description
Portuguese text; stylized wave; map of Boa Vista; landscape of Boa Vista (home of Aristides Maria Pereira), including fireplace of pottery factory
Catalog Information
GSID:
91424
Variety:
Diagonal red SPECIMEN ovpt front/back; horizontal red # ovpt lower left front; all-zero s/n
BNB #:
B221as
Pick #:
P75
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Subject: I would like to contribute catalog info to CDN for Diagonal red SPECIMEN ovpt front/back; horizontal red ovpt lower left front; all-zero s/n
Body: Referring page: http://www.greysheet.com/prices/item/diagonal-red-specimen-ovpt-front-back-horizontal-red-ovpt-lower-left-front-all-zero-s-n-b221as-91424-world-paper-money-values/gsid/91424 GSID: 91424 Title: Diagonal red SPECIMEN ovpt front/back; horizontal red # ovpt lower left front; all-zero s/n
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Request Pricing 20 de Janeiro de 1977 Sig 1: da Luz/Santos Prefix A/1, B/2, C/3, D/4, E/5, F/6, G/7, H/8, J/9
No ovpt; no perf; no sig ; no s/n
Diagonal black ESPÉCIME ovpt front/back; horizontal black SPECIMEN No # ovpt lower left front; all-zero s/n
Diagonal red SPECIMEN ovpt front/back; horizontal red SPECIMEN OF NO VALUE ovpt upper front/back; horizontal black # ovpt upper left back; all-zero s/n
No ovpt; no perf; no s/n
20 de Janeiro de 1977 Sig 1: da Luz/Santos Prefix A/1, B/2, C/3, D/4
Separate uniface front/back proofs on large paper
Diagonal red ESPÉCIME ovpt front/back; horizontal red SPECIMEN No # ovpt lower left front; all-zero s/n
Diagonal red SPECIMEN ovpt front/back; horizontal red SPECIMEN OF NO VALUE ovpt upper front/back; horizontal black # ovpt upper left back; all-zero s/n
No ovpt; no perf; no s/n
20 de Janeiro de 1977 Sig 1: da Luz/Santos Prefix A/1, B/2, C/3, D/4
Diagonal red ESPÉCIME ovpt front/back; horizontal red SPECIMEN No # ovpt lower left front; all-zero s/n
Diagonal red SPECIMEN ovpt front/back; horizontal red SPECIMEN OF NO VALUE ovpt upper front/back; horizontal black # ovpt upper left back; all-zero s/n
Diagonal red SPECIMEN ovpt front; horizontal red SPECIMEN ovpt back; horizontal red SPECIMEN OF NO VALUE ovpt upper left; red # ovpt upper right back; all-zero s/n
No ovpt; no perf; no s/n
Greysheet News
CAC Coins Bring Premiums in September 2026
10/14/2026
Andrew Taggart Joins Heritage Auctions to Lead Decorative Arts to 1900
The former Freeman's senior specialist will oversee a newly reorganized department with an expanded scope that includes American furniture and decorative arts.
10/14/2026
Trump Dollar Offered in Bags, Rolls
In early September, the U.S. Mint began selling bags and rolls of Semiquincentennial one-dollar coins.
10/12/2026
Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
