Armstrong DP1
Basic
Region: North America[[ Insulator ]]
Type: Telegraph/TelephoneMaterial: Glass
Style code: CD-155
Maximum Power: Unknown
Manufacturer: Armstrong
Production Start: 1938
Production End: 1969
Rarity: Less Common
Specific Object
Date Made: 1949Specific Object Condition: Excellent
The Armstrong DP1 is Armstrong’s version of a CD-155 insulator. CD-155 replaced the widely used CD-154 insulators, like the [[ Hemingray 42 ]].
It reads on the front:
Armstrong’s DP1
On the back:
MADE IN U.S.A. (circle with A) 39 49