Yep, the one cup I see looks threaded (and why else have pin spanner holes?) plus if this IS Italian then expect both cups to have standard RH threading, since they appear to be alloy a spanner that fits the holes well and ideally more than 2 at a time would be safer. I'd use some penetrant (like Kroil) and stop if the cups don't budge before ripping them into ovals. BTDT