Small Vehicle Ammeter
This is an American-made, quality-built unit by the maker of instruments for Kubota. A great size and capacity for motorcycles. The small size and 10+ amp range is suitable for most powersports vehicles into the late 1980s era. Note, this is a full 2" diameter gauge, not the 1 1/2" commonly found elsewhere.
I have installed this type of ammeter in many larger vintage Hondas including Gold Wings, V4s and CBXs.