Hello members of this prestigious group! Let me begin by wishing Happy Holidays to you and your family!
I am working on a 1985 XJS which was parked in a ranch for 10 years. It now runs and has a few things to work on like the A/C does not blow air, it has an important power steering leak, windows are slow, etc. BUT! Her RH low beam headlight is out. So, I read up and removed it to chenge and look what I found 😱😱😱!!! What would you all wager is in there???

 

A mouse house.

Time to break out the shop vac. Your windows could use two things: silicone lube in the fabric channel runs, and removing and cleaning the console switches.

The rest..well that'll be on the next paycheque.

 

Way, way, back in the day when XK120's were relatively cheap (like circa 1970) bought one as a project.
I found a wasp/hornet nest the same location as your mouse house. Unfortunately, mine was still occupied.
A painful start to a painful project. I was in way over my head and ended up selling it for $3,600. A $600 profit. Bygones . . .

 

Please wear a mask getting that out. Hanta virus is probably in the house, too.