hi i puled this out of a track car theres no brand or markings
can anyone tell me the brand of this so i can find the details out.

looks like it shows bars instead of numbers for lean or rich.
any help would be apreciated

 

old school.... if you want a narrow band lemme know. i got an autometer one laying around that i could toss ya for pretty cheap.

 

i just would like to know what company makes it if i cant i wont bother puttin it on