Ah! Ginger Nuts, one of my favourite all time biscuits.

in-law brought me back a packet of something very similar, but not so hard, from Trieste recently - really nice.
Trieste has a great tradition in coffee and cakes, pastry, biscuits, plus a lot of the other good things in life such as smoked ham (which is called prosciutto di Praga, at its best is carved off the bone and served slightly warm with horseradish

). It is a great city for dinning out, aperatifs, and cafés.