[TowerTalk] Can anyone ID a tower?

[Kelly Johnson]

A friend of mine is looking for info on an old steel, tubular
tower/mast.  According to the owner, it was purchased from Texas
Towers around 1980.  The tower is retractable and consists of two
sections.  The lower section is square: about 3" or 4" square.  The
upper section is round.  Both sections are made of steel.  The base
consists of a square steel section embedded in concrete.  There is a
square section, very strong, on which a dutton-lainson winch is
installed to allow for tilting up the tower/mast.  The permanent
section (which doesn't move when you tilt down the tower) is about 5
feet tall.  The tiltable tower/mast have another winch for retracting
the upper section.  The entire tower/mast appears to be about 40 feet
tall.  Anyone have any idea who might have made this thing and what
the original specs were?