I have two original, unused Transmutation Liquid gifts from 2009, in their original Glass Flasks.
The flasks are, to my knowledge, unique to the items themselves. They hold .22 of a liquid but the flasks come with the amount originally given out, which is .14kg.
The flasks do have damage, one has 16.16dmg and the other 5.09dmg.
Information linked here from WP: https://www.wurmpedia.com/index.php/Transmutation_liquid_(Gift)
PM me or reply with offers. Looking for around 5s each.