Saginaw Power Steering Pump Cap

[B5 Charger]

Can anyone tell me if the cap on a late 1968 Saginaw power steering pump was unfinished or painted black? I'm restoring the pump and just need to know whether to paint or plate the cap. My cap had black paint on it but the paint came off during the degreasing process. I'm not sure if this is the original pump or a rebuilt core. I've attached a couple pictures of my cap for reference.

 

[Richin65]

Can anyone tell me if the cap on a late 1968 Saginaw power steering pump was unfinished or painted black? I'm restoring the pump and just need to know whether to paint or plate the cap. My cap had black paint on it but the paint came off during the degreasing process. I'm not sure if this is the original pump or a rebuilt core. I've attached a couple pictures of my cap for reference.

View attachment 637470 View attachment 637472

I believe it should be unfinished, not painted