Whitman Expo
With the month of July and all the celebrations of Independence Day behind us, the rare coin market looks with anticipation to August.
Thank you to our sponsors!
Go check them out!
Obverse Description
English and Somali text; coat of arms; man with camel; star
Reverse Description
English and Somali text; field workers picking cotton
Catalog Information
GSID:
134817
Variety:
1991 Sig 4: Omar/Barkhadle Prefix AA
BNB #:
B313a
Pick #:
PR1
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for 1991 Sig 4: Omar/Barkhadle Prefix AA
Body: Referring page: http://beta.greysheet.com/prices/item/1991-sig-4-omar-barkhadle-prefix-aa/gsid/134817 GSID: 134817 Title: 1991 Sig 4: Omar/Barkhadle Prefix AA
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
1991 Sig 4: Omar/Barkhadle Prefix AA
Currency
Grade Range
Sort by
Pricing
Values
Banknote Book (CPG) Values
1978 Sig 1: Omar/Hussein Series T001 - T002
Worth: $2 – $30
Diagonal black SPECIMEN and DLR oval ovpts front/back; horizontal black SPECIMEN NO # ovpt lower left front; all-zero s/n
Worth: $25 – $25
Diagonal black SPECIMEN ovpt front/back; all-zero s/n
Worth: $25 – $25
Replacement: Series Z001
1978 Sig 1: Omar/Hussein Series T003 - T016
Worth: $1 – $20
Diagonal black SPECIMEN and DLR oval ovpts front/back; horizontal black SPECIMEN NO # ovpt lower left front; all-zero s/n
Replacement: Series Z001 Unconfirmed
1978 Sig 1: Omar/Hussein Black s/n Series T001 - T012
Worth: $3 – $50
1980 Sig 2: Ahmed/Omar Red s/n Series X001 - X010
Worth: $1 – $20
Diagonal black SPECIMEN and DLR oval ovpts front/back; horizontal black SPECIMEN NO # ovpt lower left front; all-zero s/n
Worth: $25 – $25
Diagonal black SPECIMEN ovpt front/back; all-zero s/n
Replacement: Series Z001
Diagonal black SPECIMEN and DLR oval ovpts front/back; horizontal black SPECIMEN NO # ovpt lower left front; all-zero s/n
Replacement: Series Z001
1978 Sig 1: Omar/Hussein Black s/n Series T001 - T020
Worth: $4 – $60
Greysheet News
The Business of Numismatics: August 2026 Greysheet Editor's Letter
8/7/2026
Stack's Bowers Galleries Presents the Extraordinary Mack C. Chase Collection of Walking Liberty Half Dollars in the 2026 Global Showcase Auction
"These coins have been off the market for at least 10-15 years, and many of them are in older generation grading holders as well, adding to the excitement," comments John M. Pack.
8/7/2026
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