Here is a very nice t.bar type N° 287 BORGO. Borgo factory was set up in 1921 as the Italian plant of the French FOLEMBRAY, and changed its name into FIDENZA in july 1928. So we're sure all insulators marked BORGO were manufactured between these two dates. The N°287 insulator is also known as FIDENZA n° 287 in clear glass.

[IFONA CD 677.3]