COIN TEST TOKENS


Test coins or tokens were used by GPO engineering staff when maintaining coin boxes and postal equipment. 

There were two types, one type called the "Tokens, Coin Box No..." which were solely used to test coinboxs, once installed, as the coin would go into the cash box and be un-recoverable by the engineer.  They were engraved with the name of the District and had a serial number.  The areas kept a list of the serial numbers and any held by engineers were logged in their tool account.  Only the Postal Division had access to the cash boxes as they collected the money and cleaned the kiosks.  Recovered test coins, during coin sorting, would be returned to the Telephone Division.

The second type were test coins which were called "Disks, Test No..." and these were used in the workshop for testing coinbox mechanisms and Stamp Vending machines that had undergone repair.  In this case the coins were designed to be oversized or undersized and different weights so that failures could be simulated.  They were supplied as a set.

Click here for pictures of Disks, Test.

 

GPO Coin Tokens made from Brass (equivalent to 1d)
The lower token is a Token, Coin Box No. 4 which is designed to be rejected when testing as it is under weight

 

Test Coins from the Northern District of London which would centred around Studd Street

 

Older NTC and GPO Test Tokens


Tokens, Coin Box

Tokens, Coin Box No. 1
Brass test token.  Found in the 1928 Rate Book.  Used for Testing Coin Boxes.

Tokens, Coin Box No. 2
These were used by Service Inspectors and engraved with the letter "D".  Used for Testing Coin Boxes.

Tokens, Coin Box No. 3
Superseded No. 1 and No. 2 in 1944.  Used for Testing Coin Boxes.

Tokens, Coin Box No. 4
Superseded No. 3 in 1958.  Used for Testing Coin Boxes.
This is equivalent to an underweight 1d.
Drawing - 90170.

Tokens, Coin Box No. 5
Dodecagon shaped mild steel text coin.
Equivalent to 3d.
Drawing - 91231.

Tokens, Coin Box No. 6
Equivalent to 6d.
Drawing - 91231.

Tokens, Coin Box No. 7
Equivalent to 2s.
Drawing - 91231.
 


Disks, Test

Disks, Test No. 1
For Stamp Selling machines.
4 steel disks in leather case.
1 each of 1/2d. and 1d. minimum diameter "go".
1 each of 1/2d. and 1d. maximum diameter "go".
For routine maintenance testing.


Disks, Test No. 2
For Stamp Selling machines.
10 steel disks in leather case.

1 each of 1/2d. and 1d. over diameter "not go”.

1 each of 1/2d. and 1d. under diameter "not go".

1 each of 1/2d. and 1d. minimum diameter "go".

1 each of 1/2d. and 1d. maximum diameter "go".

1 each of 1/2d. and 1d. over thickness "not go".

For testing machines at repair centres.


Disks, Test No. 3
For Stamp Selling machines.
4 brass disks.
1 each of 1/2d. and 1d. minimum weight "go''.
1 each of 1/2d. and 1d. under weight "not go".
For testing coin-weight adjustment.
For routine maintenance and repair centre testing.
Specification - S244.


Disk, Test No. 5

For Repair Centre Testing of Boxes CC 705.
7 steel disks in wooden box or leather pouch.

1 each of 1/- Accept and Reject diameter.

1 each of 6d. Accept and Reject diameter.

1 each of 3d. Accept and Reject diameter.

1 of 3d. Reject Thickness.


Disk, Test No. 5 (1960)
Repair Centre testing of BCC 700D, 705D and 735D
4
disc gauges in a hardwood box.
Originally Chromium Steel, they were changed to Stainless Steel in 1967.

1 each of 1/- Accept and Reject diameter.

1 each of 6d. Accept and Reject diameter.
Drawing - CN2414.


Disk, Test No. 6 (1971)

Repair Centre testing of BCC 700D, 705D and 735D
6
steel disc gauges in a wooden box.
1 each of 2p Accept Minimum and Maximum diameter.
1 of 2p Reject Minimum diameter.
1 each of 10p Accept Minimum & Maximum diameter
1 of 10p
Reject Minimum diameter.
Drawing - CN9056 (Case).
Drawing - CN9055 (Disk set).


Disk, Test No. 6A (1982)

Repair Centre testing of BCC 700D, 705D and 735D
6
steel disc gauges in a wooden box.
1 each of 5p Accept Minimum and Maximum diameter.
1 of 5p Reject Minimum diameter.
1 each of 10p Accept Minimum and Maximum diameter.
1 of 10p Reject Minimum diameter.
Drawing - CN9056A (Case).
Drawing - CN9055A (Disk set).

 

Disk, Test No. 7A
Obsolete in 1984.


Disk, Test
No. 8 (1980)
3 steel disc gauges in a wooden box.
1 of 50p Accept Minimum diameter - marked A MIN.
1
of 50p Maximum diameter - Marked A MAX.
1 of 50p Reject Minimum
diameter - Marked R MIN.
Drawing - CN13553/1 (Case).
Drawing - CN13553/3 (Disk set).


Disk, Test No. 9 (1982)

Comprises 2 test disks for calibration of Coin Telephone No. 23B.
Made of "Hard" Nickel Silver.
The Disks are labelled 9H and 9L.
Specification - S1550.

 

Disk, Test No. 10
Issued in a wallet with a link for setting test conditions.
First use: Coin Telephones Nos. 24A and 25A.
 

Disk, Test No. 11A (1985)
2 disks made of stainless steel.
1 of 50p - Marked 11H.
1 of 50p - Marked 11L.

Drawing - CN13984/2 (Case)
Drawing - CN13984/3 (Disks)


Disk, Test No. 11B (1987)
3 disks, made of stainless steel.
1 of 1 - Marked 11H 1.
1 of 50p - Marked 11H 50p.
1 of 50p - Marked 11L.
Drawing - CN13984/2A (Case)
Drawing - CN13984/3A (Disks)

 


Coin Counting Machines

1946

 

1954

 

 

 
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Last revised: December 29, 2022

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