The manufacturer’s covers are made of metal and are rectangular or square in shape.
No colored or gold-toned covers were found for this manufacturer, and no city emblems appear on the covers.
The intended function of the cover does not appear on many of the covers. On some communication-related covers, the name of the telecommunications provider is indicated (for example, Siptel) ; on others, the word GAS appears, and so on.
The year of manufacture generally does not appear.
Standards No standards were found on this manufacturer’s covers.
Typical covers Most covers feature a background of large squares dividing the cover, with diamonds inside them or short lines (BREVETTO model).