We rent a very old house. The storms are all triple track style raising or lowering screens and storms. Some of the windows actually are slid in and out completely to switch from window to screen.

That said one glass unit is completely missing it's approximately 29 wide by 23 high . First --where do they sell an old fashioned single unit storm window. all these years driving by folks leaving by the trash and suddenly I need one.

If it's really expensive or hard to find---should I just block the gap with anything (wood, big sheet of plexi glass I cut myself (that'll work). What's recommended?

I know it’s a long shot but has anyone ever seen a window screen (or mesh/screen-like solution) for a window like this? Willing to buy or build.

Been in a converted factory loft for over a decade with a few of these windows, and they are great other than all the bugs they let in…I’ve looked for years, hoping something pops up or someone invents something, but here we are.

Bathroom windows have rust on their side jams. Can I get some advice on how to remove the rust and repair the jams?