Italian studio ceramic dish

Hand-built ceramic dish found in Italy, signed with the initials "I.M." underneath. It comes in two parts: a thick, rounded outer rim with a chalky matte finish fading from lilac to periwinkle, and a separate glossy green insert decorated with an abstract relief motif in bare clay and pools of green crackle glaze. The small notch in the rim reveals its original life as an ashtray; today it's lovely as a catchall for rings, keys or matches.
Pre-loved, good vintage condition.