And after reading about the convoluted trade in year old grain in the Polish markets, I came across this little piece about wine selling in Cracow. Poland had lost nearly all it's vines and had to import wine.
The arrival of the new wine was an annual occasion for festivity. To guard against cheating by tavernkeepers, all wine shops in Cracow had to dispaly on their boards either a shock of straw or a green branch according to whehter the wine they sold was Moldavian or Hungarian.
So many interesting little tidbits to pick up...