Whitman Expo
Greysheet Podcast featuring John Feigenbaum and Ian Russell
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Bhumibol Adulyadej (Rama IX) wearing Commander of the Armed Forces uniform; Dusidaphirom Pavilion and Chakri Mahaprasart Pavilion; Royal Garuda emblem; airapote (3-headed elephant)
Reverse Description
Thai text; Ananta Samakhom Throne Hall in Bangkok
Catalog Information
GSID:
139671
Variety:
Solid security thread Prefix F/89 - F/96 Intro: 18 09 1956
BNB #:
B148b
Pick #:
P77
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for Solid security thread Prefix F/89 - F/96 Intro: 18 09 1956
Body: Referring page: http://livetest.greysheet.com/prices/item/solid-security-thread-prefix-f-89-f-96-intro-18-09-1956/gsid/139671 GSID: 139671 Title: Solid security thread Prefix F/89 - F/96 Intro: 18 09 1956
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
Solid security thread Prefix F/89 - F/96 Intro: 18 09 1956
Value By Grade
Solid security thread Prefix F/89 - F/96 Intro: 18 09 1956
Banknote Book values
Currency
Grade Range
Sort by
Pricing
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
![Greysheet Podcast: RARE COIN MARKET EXPLODING! Ian Russell Reveals the Coins Collectors Are Buying NOW [Video]](https://images.greysheet.com/l/blogs/20260918/1dc72704-e5bd-44bf-ad3d-7f11027ec440.jpg)
Greysheet Podcast: RARE COIN MARKET EXPLODING! Ian Russell Reveals the Coins Collectors Are Buying NOW [Video]
9/18/2026
Carthage Gold Stater Leads Heritage's LII Collection Ancient Coins Auction to $823,683
Heritage's Sept. 8 Ancient Coins Showcase Auction achieves 100% sell-through rate as Greek, Ptolemaic, Macedonian and Judaean rarities deliver strong results.
9/17/2026
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
