The galss t-bar is a FIDENZA 287 B and comes from the centre of Rovegno. Last survivor of many, I discovered (and wanted) it since 1973: today I could put a ladder on the wall, with the owner's permission, and rescue it easily: it wasn't cemented, so had no problem to turn off its pin. The other t-bar comes from Isola di Rovegno, another insulator met many years ago in Isola di Rovegno and just rescued :-)