Whitman Expo
CAC approved and CACG encapsulated coins fared well in public sales during the month of July 2026.
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; five people kneeling before Rama IX and Queen Sirikit; Queen Sirikit and Rama IX examining map; Royal Garuda emblem; Bhumibol dam (formerly Yanhee dam) on the Ping river, Tak Province
Catalog Information
GSID:
139864
Variety:
Sig 64
BNB #:
B165c
Pick #:
P92
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for Sig 64
Body: Referring page: https://www2.greysheet.com/prices/item/sig-64-b165c-139864-world-paper-money-values/gsid/139864 GSID: 139864 Title: Sig 64
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 64
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
CAC Coins Bring Premiums in July 2026
8/18/2026
Editor's Message: Red Book Quarterly Summer 2026
This issue of Red Book Quarterly comes amidst the thick of a rare coin bull market.
8/17/2026
A New Chapter for Raleigh Money Expo Starting in 2027
Whitman Expos and Raleigh Coin Club Partner to Create the Carolinas' Premier Collecting Event and a New National Numismatic Destination.
8/15/2026
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