DESIGN:
The idea for this very functional cover is that the arrow will indicate the direction of gas pressure in the pipes below. The arrow would be guided itself by a square notch on the rim of the seat. In this case there seems to have been some disagreement and a great deal of effort putting the round hole over the square notch.
UTILITY:
The B&T of this cover is not the gas company, rather the foundry Bingham and Taylor in Culpeper Virginia. Among all the utilities, gas companies are the most secretive.
RANGE:
This size and type cover is found all over the place.
