I have 7 of the euro version in amber and 8 clear (one broke).

These cross over to Mercedes (or so I'm told) but

NOT 914 lenses
They are slightly larger
However the 914 seals I make do fit around the edges, I don't have a set of 911 fog light housings to check.
These should be from the early 70's vintage, but I'm guessing. They may be earlier.
PM me for takers

These may be for the 5 rivet 914 fog lights. . slightly larger than the
standard tn1-2 or tn4 and stand a tad bit taller

Looks like 914 Euro Driving Light lens.

Stopped by Sunset and the number they came up with was 901.631.211.01

Mark, I'll take a pair of clear lenses. I'm restoring a set of 5 rivet 914 driving lights. These lenses are correct for euro early 911's (chrome housing),and euro early 914's (black housing). These were not on USA cars as driving lights were not DOT approved in the 70's