This post documents the mechanical restoration of the E1 window, original to the addition put on the 1950s.

Here are some pictures taken before deconstructing the jamb. I pulled the casings off the jamb so that I could get the pulleys out.

And a picture of the hardware once removed. One sash lock was broken and will be replaced.

And some pictures of the restoration process. Weight access pockets were installed, new rope and pulleys installed. I broke a pane of glass in the process, which was cut and replaced. Hardware was soaked in a crockpot and excess paint removed.

Jamb was primed and painted. New hardware installed.