To get to the gasket, I need to remove the window. Turning the window over revealed rivets on the back of the hinge that holds the window in place.
After hitting the domed rivet with a punch so I can get my drill bit started, I drill through the rivets and the window slides out.
Then, using a dull, old chisel I remove the old rubber seal.
That old paint, and the small bits of surface rust, need to go. Out with the sandpaper.
After about two hours, the first window frame is ready for paint. I think I'll take a little break before starting on the second!