Whitman Expo
The search is on for special quarter dollars that will be placed in circulation by the United States Mint as part of the nation's Semiquincentennial celebration.
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Dok Loi symbol as registration device; Royal Garuda emblem; emblem of Chakri Dynasty, depicting chakra (discus) and trisula (trident); Bhumibol Adulyadej (Rama IX) wearing uniform of the Supreme Commander of the Armed Forces
Reverse Description
Thai text; globe and telescope; table and seated Rama IV; Phra Pathom Chedi stupa in Nakhon Pathom; Royal Garuda emblem; Dok Loi symbol
Catalog Information
GSID:
139900
Variety:
Sig 71
BNB #:
B172b
Pick #:
P102
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for Sig 71
Body: Referring page: http://beta.greysheet.com/prices/item/sig-71-b172b-139900-world-paper-money-values/gsid/139900 GSID: 139900 Title: Sig 71
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
Sig 71
Currency
Grade Range
Sort by
Pricing
Values
Banknote Book (CPG) Values
No date Sig 16 Prefix C/1 - D/50 Thai digits in right s/n; variable weight font Intro: 07 03 1940
Worth: $6 – $100
Sig 23 Prefix D/51 - D/62 Western digits in both s/n; monoweight font Intro: 22 05 1946
Worth: $6 – $100
Diagonal red DLR oval ovpt front; horizontal red SPECIMEN No # ovpt lower left front; no sig ; all-zero s/n
No date Sig 16 Prefix K/26 - K/27 Intro: 07 03 1940
Horizontal purple SPECIMEN ovpt front; no sig ; no s/n
No date Sig 16 Prefix N/16 - N/39 Intro: 07 03 1940
Worth: $40 – $150
Sig 23 Prefix N/48 - N/55
Worth: $40 – $150
No date Sig 16 s/n T/1 20001 - T/1 40000 Intro: 07 03 1940
Worth: $800 – $3,400
Diagonal black DLR oval ovpt front; horizontal black SPECIMEN No # ovpt lower left front; all-zero s/n
No date Sig 17 Thai digits in right s/n Prefix A/1 - A/40 Intro: 24 06 1942
Worth: $30 – $450
Western digits in both s/n Prefix A/41 - C/28
Worth: $30 – $450
Sig 19 Prefix C/29 - C/32
Worth: $30 – $450
Sig 20 Prefix C/33
Worth: $30 – $450
No ovpt; no perf; all-zero s/n
No date Sig 17 Wmk: Constitution on phan (decorated tray with pedestal) Prefix N/1 - N/50 Intro: 24 05 1943
Worth: $60 – $1,200
Greysheet News
Special Quarters Headed for Circulation
8/10/2026
The Business of Numismatics: August 2026 Greysheet Editor's Letter
With the month of July and all the celebrations of Independence Day behind us, the rare coin market looks with anticipation to August.
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