CTE is a very old brand here in EU, together with Targa, Sirio, lemm etc ...
I always wondered if they were not from the same factory hi.
As mentioned, they did have the "avanti sigma 4" clone..and a couple other "popular" antennas.
Not known for strength, i do recall the CTE Skylab was a popular antenna back in the 80s ? I remember riding on a bicycle and noticing them on the chimneys hihi.
They were also amongst the first to introduce yagi beams for CB here.
They had the "spitfire" yagi,.... a 3el with a hairpin match.
It was either the spitfire yagi or the 3el Armco... you didnt have much other options.
This one looks similar to a Sirio GPE, but im not sure what "CTE" named it
Ill see if i can find it in some old CB magazines...must be in there somewhere...
73 Henry
Edit :
Scanning through an old magazine... I found something called CB master super 5/8 and the Futura CB-master 5/8 with its length not specified. They do look similar. also found an add with the old "speedy" amplifier of CTE, the pulsar "beam"... and i forgot PAN antennas made a couple yagis either... nice to scan those old brochures hi.