I will put here some old photos of dismantling the headlights, but there was nothing in them to be proud of... Now i am putting them together.
Anyway, that is the lamp. I removed that chromed ring.


Then i've removed sealed beam.


It was sandwiched between stainless steel ring (seen on photo) and a zinc-plated "plate". I set them apart.


Inside is not pretty, but it has 55 years of service...


But I've just received some of my bolts and other stuff from zinc plating (done for a bottle of something :) )


I've also received a few thinghs from sandblating and powder coating. So I could assemble such looking headlight (there is also new rubber grommet):


New lamp, european beam.


You can see what holds it inside.


And completed headlamp assembly. This is actually first completed thing on my Buick...

---