What do we know about these? For example:
SIAE is the Italian Society of Authors and Editors, so that’s clear. This one is intended for sale (vendita) and rental (noleggio) is forbidden (vietato). Clear enough. There is a serial number at the top and the identifier of the company at the bottom. Clear. Do we know though how these are issued and authenticated? One reason I ask is that these could or can be found on the infamous supposed ‘bootlegs’ of organissimo lore. Anyone know more?