I have almost weeped of joy when I've got these out of the box, in their 25 years old original factory packaging. Even the wrapping tape is a small treasuer itself.....
Just out of the box:

The original Part Number labels:


Brand new set of cylinders. Even so brand new that the vertical one has painting applied where it shouldn't (!): on both base and top end seatings.


Isn't live really beautiful some times????

P.S.- I still don't now if the old cylinders are still in working order because I have not dissasembled them. If they are, these ones are going to be part of my home's decoration.