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Vocal gas alarm tested .
Vocal gas alarm tested . _x000D_
Test are being made at Hendon to discover the best warnings in the event of a gas attack from the air . _x000D_
Sirens are being sounded separately from Hendon Police station , which is in the centre of a ring of observers , policemen the stationed in pairs at distances of 100 , 200 , 300 , 400 yards away . They have sound recording instruments to determine the po…
Creator
- TopFoto
- TopFoto
Subject
- Twentieth century
- home front
- civil defence
- Preparation
- training
- europeana photography
- Between the wars
- black and white
- monochrome
- 30s 30's 1930s 1930's thirties nineteen thirties
- …
Type of item
- Photography, Professional Photography
Creator
- TopFoto
- TopFoto
Subject
- Twentieth century
- home front
- civil defence
- Preparation
- training
- europeana photography
- Between the wars
- black and white
- monochrome
- 30s 30's 1930s 1930's thirties nineteen thirties
- …
Type of item
- Photography, Professional Photography
Providing institution
Aggregator
Rights statement for the media in this item (unless otherwise specified)
- http://rightsstatements.org/vocab/InC/1.0/
Places
- London,United Kingdom England
Identifier
- https://www.topfoto.co.uk/asset/3046534
- https://www.topfoto.co.uk/asset/3046534
Language
- English
- eng
Is part of
- Europeana XX: Century of Change
Providing country
- United Kingdom
Collection name
First time published on Europeana
- 2020-03-27T10:38:53.055Z
Last time updated from providing institution
- 2022-03-01T18:27:49.540Z