What are these from?(fenders)

'70-'71 Valiant, Duster or '71 Scamp.
They aren't Darts because Darts used the more tapered wheel openings.

Mark.
He's definitely right, also the shape of the wheel lip is different alltogether on a dart. The '69 valiant had a smaller rectangular hole for the reflector about 1/4" smaller all around.
I know this because i have a '69 valiant 2 door that i'm fixing up and i have compared several fenders from different years. I ended up using one off a '73 valiant 4 door, and cutting out the surface mount reflector/light hole and grafting in a correct '69 reflector and flanged piece in it's place.
What i now know for sure the differences between '67-'76 valiants/dusters are:
'67- no marker light or reflector
'68- round marker light
'69- smaller rectangular reflector, no light
'70 and '71- larger rectangular marker light and reflector (same as the ones in the pictures above)
'72 to '76- plastic rectangular marker light/reflector that is surface mounted and sticks out from the fender.
There are some other differences like headlight buckets and tabs that the grille mount to as well, not hard to change or modify though.
Dart fenders are totally different.
Also, noteworthy is the '69-'71 lights/reflectors are mounted to a bezel that is attached to the inside of the fender and the hole it sits in is flanged so the bezel sits flush to the surface of the fender.
Good luck,i hope this helps you. :cheers:
Tom.