Some Bristol Security Overprints

As an alternative to Perfins, some firms applied a security overprint for use on stamps used for receipts.  All of the examples below are from 1952 or early 1953. 

Maggs & Co. was a large department store on Queen's Road.

The South Western Electricity Board used to be Bristol Electricity before it was nationalised.

Below is an example of an impressed 2d duty stamp used by Bristol United Breweries.

The example below is from Bristol United Press Ltd.

And finally one from the South Western Gas Board in January 1953 along with some postal stationery from 1947.