Whitman Expo
The United States Mint has selected 37 American artists to participate in its Artistic Infusion Program (AIP) to create and submit new designs for coins and medals.
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Ananda Mahidol (Rama VIII) wearing military uniform; Phra Samut Chedi temple and pagoda on the Chao Phraya River; Royal Garuda emblem; airapote (3-headed elephant)
Reverse Description
Thai text; Ananta Samakhom Throne Hall in Bangkok
Catalog Information
GSID:
139481
Variety:
Sig 20 Prefix C/33
BNB #:
B105d
Pick #:
P39
Send Catalog Feedback
Subject: I would like to contribute catalog info to CDN for Sig 20 Prefix C/33
Body: Referring page: http://www.greysheet.com/prices/item/sig-20-prefix-c-33/gsid/139481 GSID: 139481 Title: Sig 20 Prefix C/33
Subscribe to View
Log In
View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.
Bank Note Value History
Sig 20 Prefix C/33
Value By Grade
Sig 20 Prefix C/33
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
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
Sig 20 Prefix N/51 - N/57
Worth: $60 – $1,200
Greysheet News
U.S. Mint Chooses Artist Corps
10/8/2026
October 2026 Greensheet Market Analysis: Collector Grade Notes Strong
We now have the first prices realized dataset for the immense Stack's Bowers Global Showcase auction, and it reveals a market that is moving in two directions at the same time.
10/7/2026
Stack's Bowers Galleries' Summer 2026 Global Showcase Auction Realizes Over $70 Million
Results Set Record for the Firm's Highest Grossing Auction Sale in its 90+ Year History.
10/7/2026
Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
