Whitman Expo
Greysheet Podcast Featuring John Feigenbaum and John McGrath
Thank you to our sponsors!
Go check them out!
Obverse Description
Thai text; Royal Garuda emblem; royal seal; Bhumibol Adulyadej (Rama IX) wearing uniform of the Supreme Commander of the Armed Forces
Reverse Description
Thai text; seal; procession with king under umbrella; standing Rama VIII; Rama VIII cable-stay bridge, Bangkok; Royal Garuda emblem
Catalog Information
GSID:
139896
Variety:
Sig 84
BNB #:
B171m
Pick #:
P109
Send Catalog Feedback
Subject: I would like to contribute catalog info to CDN for Sig 84
Body: Referring page: http://www.greysheet.com/prices/item/sig-84-b171m-139896-world-paper-money-values/gsid/139896 GSID: 139896 Title: Sig 84
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 84
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
![Greysheet Podcast: Rare Coins are BOOMING! John McGrath is back to discuss AI & Million-Dollar Gold Rarities [Video]](https://images.greysheet.com/l/blogs/20261016/7c00044a-ce7e-4eae-9047-1e4b1ab0e0c7.png)
Greysheet Podcast: Rare Coins are BOOMING! John McGrath is back to discuss AI & Million-Dollar Gold Rarities [Video]
10/16/2026
Heritage Auctions Appoints Joseph Francaviglia as West Coast Director of Trust & Estates
Auction house veteran joins Heritage to expand West Coast presence and strengthen services for professional fiduciary advisors.
10/16/2026
Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
