Other than for looks, I would not use this decades old capacitor, at all.
If you don't care about the looks just replace with a modern capacitor, like 1000uF 100V (might want to go to a even higher voltage). Use a part from a well known company (Nichicon, Chemicon and so on.), you might want to show us the PCB where it goes in, but I assume anything will work. A "standard" part might be better seuited than a "low ESR for switching power supplies" model.
If you want to keep the vintage look, hollow out the old cap and hotglue the new one into it. (Careful not to short out anything etc. pp.)