Incuse T K 1 punched on Zinc disk
Unidentified - Pridmore #103a

A Locally manufactured piece of unknown Issuer, Full of ½ unit listed by Pridmore under Ceylon.

SPECIFICATIONS
Denomination1 Unit
AlloyBrass
Diameter26.3 mm
Thickness mm
Weight?.?? gms
Shaperound
EdgePlain
DieAxis
Issue
tk_1_obverse tk_1_reverse
Pridmore Unlisted.
Obverse : T K
1
(incuse)
Reverse : blank except for relief of Punch.

Pridmore #103 has token ¼ below same T K and is smaller (20 mm) and made of Zinc.
The number ¼ is assumed to represent a quarter task.
Above also looks like Zinc although listed in Pridmore and Auction catalog as Brass.

There many such locally manufactured tokens of similar fabric and style with issuer unknown.
For example CY 1 P#25 full token; P#26 half token; MD 1 P#71 token;
The full and half denominations is the justification of them being called coffee tokens.

Reference
* The Coins of British Commonwealth of Nations to the end of the reign of George VI 1952 Part 2 - Asian Territories by F. Pridmore Spink & Son Ltd., 1965.

Image of token ex Pridmore Collection ex Dick Ford Collection (1995 Feb 23 Taisei-Baldwin-Gillio Auction#19 lot #290), and images from 2007 July 25 Noble Auction#85 (lot #2302 part), ex Robert Climpson Collection. Displayed at 200 dpi.