trying to I.D. a valve cover

[topher5150]

So I gots this valve cover, I know it's Ford V-8 I was thinking it was a 289, but from what I've seen they have breathers on them, could it be from a 260?

 

[Slowmkviii]

I'd guess 302
Looks like my 85 cougar did I had even painted them ford blue.

 

[Ford nut]

Early 260/289 covers were round cornered.
Gold color
66 they all were blue
68 they added powered by ford script which ran into sometime in the 70s I believe.
Those look later then the scripted covers.

 

[LeoC2]

There's no stamping with a part # inside?