1920:
Gas Accumulator Co (UK) Ltd
The Gas Accumulator Co - Aerial Lights For Aerodromes
Rec. Num. 1 of 2
Source: Aeroplane July 7th 1920
1920:
The Gas Accumulator Co (UK) Ltd
The Gas Accumulator Co - Aerial Lighthouses For Aerodromes
Rec. Num. 2 of 2
Source: Aeroplane July 14th 1920
