Whitman Expo
Red Book Podcast featuring Jeff Garrett and Jeff Shevlin
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Ananda Mahidol (Rama VIII) wearing military 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:
139489
Variety:
Sig 20 Prefix P/85 - P/88
BNB #:
B107c
Pick #:
P41
Send Catalog Feedback
Subject: I would like to contribute catalog info to CDN for Sig 20 Prefix P/85 - P/88
Body: Referring page: http://www.greysheet.com/prices/item/sig-20-prefix-p-85-p-88/gsid/139489 GSID: 139489 Title: Sig 20 Prefix P/85 - P/88
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 P/85 - P/88
Value By Grade
Sig 20 Prefix P/85 - P/88
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
![Red Book Podcast: Rare & Undervalued? Yes! The So-Called Dollars Most Collectors Miss! [Video]](https://images.greysheet.com/l/blogs/20261008/9fdd334d-fa62-4379-8573-6337115182ac.jpg)
Red Book Podcast: Rare & Undervalued? Yes! The So-Called Dollars Most Collectors Miss! [Video]
10/9/2026
Denver Mint Silver: Rarities of the 20th Century
On nine occasions in the 20th century, the Denver Mint produced fewer than one million coins in a certain year and denomination.
10/9/2026
America is ReDiscovering Columbus, and there's Something for Every Collector.
Heritage's Showcase Auction featuring the Starlust Columbiana Collection is open for bidding on Oct. 9th through Nov. 9th.
10/9/2026
Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
