Whitman Expo
Nearly 100 Collectible Bitcoins to Cross the Auction Block on Saturday, September 5.
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Royal Garuda emblem; royal seal; Bhumibol Adulyadej (Rama IX) wearing uniform
Reverse Description
Thai text; Royal monograms; five students walking from school toward candle and open book; royal initial emblem; seated Rama V and standing Rama VI, both holding swords; seated monk and two boys; Royal Garuda emblem
Catalog Information
GSID:
139849
Variety:
Sig 71
BNB #:
B163h
Pick #:
P97
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-b163h-139849-world-paper-money-values/gsid/139849 GSID: 139849 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
Physical Bitcoin Takes Center Stage This Labor Day Weekend at Stack's Bowers Galleries
8/31/2026
Whitman Publications Win Three 2026 NLG Awards
Whitman Brands walked away with a trio of honors during the annual Numismatic Literary Guild awards, held during the American Numismatic Association World's Fair of Money in Pittsburgh.
8/31/2026
![Red Book Podcast: Numismatic Education for Today's Generation [Video]](https://images.greysheet.com/l/blogs/20260828/b4d9283d-3087-4fbc-b0f4-677f1a9fe462.jpg)
Red Book Podcast: Numismatic Education for Today's Generation [Video]
Red Book Podcast Featuring Jeff Garrett and Christian Strayhorn.
8/28/2026
Events
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Location: Heritage Auctions
Wednesday, July 1, 2026
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction
Location: Heritage Auctions
Thursday, July 2, 2026
