Rare Gems?

Doing a little cleaning in the shop today.
Moving some stuff to another building.
Came across a tote of carb parts.

Found a main body for a 1969 302 Z28.
GM part #3923289 / LIST # 4053

Main body & base plate for 1968 Shelby GT500.
Ford part #C8ZX-9510-A / LIST #4129

Main body & base plate for 1968 Mustang,Fairlane, & Cougar 390 GTA.
Ford Part #C8OF-9510-D / LIST #3796-1.

I have had these for 30 plus years. Now 30 years ago, these were just old carbs that were replaced with upgrades.
So there is no telling what is in your shop.
Any body have any use for any of these or have freinds with brand-x'ers that may need one?