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Obverse Description
Thai text; Ananda Mahidol (Rama VIII) wearing military uniform; Wat Arun (Temple of the Dawn) of the Chao Phraya River in Bangkok; Royal Garuda emblem; airapote (3-headed elephant)
Reverse Description
Thai text; Ananta Samakhom Throne Hall in Bangkok
Catalog Information
GSID:
139491
Variety:
Sig 20 Prefix S/5, S/6
BNB #:
B108b
Pick #:
P42
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To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for Sig 20 Prefix S/5, S/6
Body: Referring page: http://beta.greysheet.com/prices/item/sig-20-prefix-s-5-s-6/gsid/139491 GSID: 139491 Title: Sig 20 Prefix S/5, S/6
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Bank Note Value History
Sig 20 Prefix S/5, S/6
Value By Grade
Sig 20 Prefix S/5, S/6
Banknote Book values
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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
The Business of Numismatics: August 2026 Greysheet Editor's Letter
8/7/2026
Stack's Bowers Galleries Presents the Extraordinary Mack C. Chase Collection of Walking Liberty Half Dollars in the 2026 Global Showcase Auction
"These coins have been off the market for at least 10-15 years, and many of them are in older generation grading holders as well, adding to the excitement," comments John M. Pack.
8/7/2026
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