Fidenza 2205A in light aqua, with the date 1940 embossed inside / under both the upper and the lower sections The "A" denotes wider top and side cable grooves to accomodate the larger gauge aluminum wire. 2205 designates two parts, 5KV rating. This is in the CD 380 family.

There appears to be a light "iridite" coating on the cable top section, as a "radio treatment". The clear 6205 also has this coating.