M frame marking I don’t recognize, can one of you?

[SingleservingJoe]

Hi guys, can one of you tell me what this is in the photo before the M, I just bought them off ebay and I only spotted it just a couple minutes ago.

 

[Dbninc]

Hi guys, can one of you tell me what this is in the photo before the M, I just bought them off ebay and I only spotted it just a couple minutes ago.

View attachment 929656

Looks like paint peeling, or a reflection?

 

[SingleservingJoe]

Looks like paint peeling, or a reflection?

Yeah, I thought it was a reflection also but when I enlarge it, it kind of looks like it could be something

 

[SingleservingJoe]

I didn’t think it was a paint issue because they appear to be in really nice condition

 

[ZCForge]

Looks like a reflection to me