Identify injectors stock or replaced

[JohncJordanIII]

So I did a tune up and re sealed my cross over tubes and noticed fresh paint marks indicated someone been in there before. Now it makes more sense as all 6 tubes were seeping fuel if someone did injectors and either A re use o ring on tubes, or used fresh ones but didn't lubricate them or mix of both. Either way everything is fine, oil samples perfect but just didn't know if looking on top of the solenoid if anything can give me a clue on brand, year, ect of what is stabbed in there. I saw MY18 on all six of them but never took a actual picture