JKDJedi
Headphoneus Supremus
I'd message them and specifically ask for the 63' if ordering from them (thanks to @Paladin79 for the find on the 63' excellent tube)For those looking for 1963 Melz. I think those are. See the photos.
https://www.ebay.com/itm/NEW-METAL-...C32-HOLE-PLATE-MELZ-tube-60s-OTK/172487230235