Whitman Expo
Atocha, 1715 Fleet and Whydah treasures among top highlights in Aug. 9 event.
Thank you to our sponsors!
Go check them out!
Obverse Description
Spanish text; coat of arms registration device; triangle symbol for blind; bird flying over marsh; Francisco de Paula Santander wearing military uniform
Reverse Description
Spanish text; Liberty head bank seal; Casa de Moneda (mint) building and reinforced door; coat of arms registration device
Catalog Information
GSID:
94923
Variety:
28 DE JULIO DE 2010
BNB #:
B988l
Pick #:
P457l.
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for 28 DE JULIO DE 2010
Body: Referring page: https://www1.greysheet.com/prices/item/28-de-julio-de-2010/gsid/94923 GSID: 94923 Title: 28 DE JULIO DE 2010
Subscribe to View
View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.
Bank Note Value History
28 DE JULIO DE 2010
Currency
Grade Range
Sort by
Pricing
Values
Banknote Book (CPG) Values
PRIMERO DE MAYO DE 1920 6- or 7-digit s/n Intro: 1923
Worth: $3,500 – $7,000
QUINCE DE SEPTIEMBRE DE 1919 6-digit s/n Intro: 1923
Worth: $17,000 – $33,500
QUINCE DE SEPTIEMBRE DE 1919 6-digit s/n Intro: 1923
QUINCE DE SEPTIEMBRE DE 1919 6-digit s/n Intro: 1923
20 DE JULIO DE 1923 Sig 1: Joaquín/Michelsen/Posada Series A 7- or 8-digit s/n
Worth: $130 – $500
Separate uniface front/back; no ovpt; no perf; all-zero s/n
Separate uniface front/back; no ovpt; no perf; no s/n
Two diagonal red SPECIMEN ovpt front; all-zero s/n
20 DE JULIO DE 1923 Sig 1: Joaquín/Michelsen/Posada Series B 7-digit s/n
Worth: $200 – $2,700
Separate uniface front/back; no ovpt; no perf; all-zero s/n
Separate uniface front/back; no ovpt; no perf; no s/n
Two diagonal red SPECIMEN ovpt front; all-zero s/n
20 DE JULIO DE 1923 Sig 1: Joaquín/Michelsen/Posada Series C 7-digit s/n
Worth: $400 – $1,700
Separate uniface front/back; no ovpt; no perf; all-zero s/n
Separate uniface front/back; no ovpt; no perf; no s/n
Greysheet News
Atocha Silver Ingot Leads Heritage's Shipwreck & Treasures World Coins Auction to $459,498
8/12/2026
The Shape of Things to Come in U.S. Coinage
The U.S. Mint is planning to release the first U.S. coinage and medal of a shape other than round.
8/12/2026
Greysheet Offers Former Numismaster Subscribers 3 Months Free Subscription
Numismaster.com ceased operations on July 31, leaving paid digital subscribers scrambling to pursue other options for their numismatic information.
8/10/2026
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