I was fortunate for instance to discover a bottle full of Stephens scarlet Ink. Stephens used to be a household name in the UK until the 1950s and has produced (apart from the ink) some very iconic advertisements featuring the famous ink blot. Waterman's is another famous brand I always look for and I have recently came upon a couple of bottles full of Green and Brown ink.
In the following days, old ink enthusiasts will be able to purchase from the shop samples of Waterman's and Swan ink. Supply will be limited so speed is of an essence.