Hi, lovely vase, I like this pattern very much. Looks like Lilac c1974, probably pat. no. 9777 in catalogues at 7.5 ". The 9772 is the larger one at 9 ".
For cleaning I use Cillet Bang and leave in overnight, but the Lidl one sounds very effective if only needed to stay in for 2 mins! I shall try that. Emmi