From this description, it sounds like there are a few of these metal cones (if you call a square thing a cone, and the lenses mounted on a circular piece of metal (is this a cam?) onto the cone.
He also had two sets of Kodak Polycontrast Filter Kits, Model A.
diane
if the square thing has a bellows on it, this will work to replace the cones ..
it is really a aux enlarging bellows for making reductions, but it will work as a "cone" ....
( what i use on both my d3v + e3 )
the cam is a sloping piece of metal that is behind the enlarger' s head and
within the column. there is a rolling circular piece of metal that is attached to the enlarger's bellows and extends/compresses it when the head is raised/lowered and it travels up/down the cam (the autofocus mechanism ) .
the omegalite cold light head will work with graded papers, with vc papers
you will need to split filter --- you can also use a yellowish circline lamp
( they sell them at the hardware store ) or get a yellow cc25 (?) filter /gel
to change the cast of the light. i have an omegalite but never used it,
not because it took a long time to light it has a "rapid start ballast", i just didn't want to deal with split filtering, and extended exposure times from the cc filter.
it is the generation before the e3 - the older square head'd e2's
needed to have the lamp on all the time and a shutter mechanism for
exposures because the ballast took too long to light the bulb. they took small straight bulbs.
if you want to save your $$ and not buy a 300$ cold light head for at aristo,
rick (at aristo) can suggest what kind of filters or bulb you might want to
experiment with ...
good luck
john
ps. grab that varium!