OK, my fault in the confusion, but the G/PS lamps are NOT related to the
ERS. I found them next to each other (the G/PS lamps were in the PC spots), and to avoid a lot of really small albums on Facebook they wound up in the same album.
In terms of a lamp for the
ERS I have yet to find one other than a modern version. In reviewing past threads, it would be an early version of the EGG (IIRC, might be EGE), albeit likely an
incandescent version.
As for lamp brand, they each say GE, with "
Base Down To Horizontal" and 500W / 1000W. The 500W is rated 120V, the 1000W at 115V. They are both also labeled as "Spotlight." How something that large, lacking a means of proper focus (a la P28s,
etc.) can be a spot I will never know.
Again, sorry for the confusion, it is hard for me to know what may help you out in finding information on the
fixture.
(Sidenote: Patent US2076240, by a certain Mr. Levy, c.1934, appears to be an early
ERS, if not the first, and has the twin PC lenses.)
Ah' that does change things. I was thinking that given the size of the lamp housing and the lamps next to it such a
fixture could feasibly be for a PS shaped lamp. Still possible, would need more photos such as how you access the lamp. Still though if P-28s, it is a curious
fixture still. That
LCL of the DNS/EGE at 3.1/2" is less about the needs of the
halogen lamp and more about the
incandescent lamp's cooling area for the tube shaped lamp & still possible it was a PS shaped lamp origionally installed in the
fixture.
The dual
lens is still a problem given the
base type - verify the paint is origional to the
lens train in matching body or that someone didn't install a dual
lens to the
fixture at some
point. No idea of who made the
fixture but at least the dual
lens sits better now with lamp
base type somwhat for eara - early/mid 60's at most I think in still being really early for a dual
lens train. This at most if not somewhere between the 40's and early 60's still.
Certain key characteristics to look at and for. Was the paint sort of thick and textured almost like a cement coating? Square or hex nuts in use? Absolutely no name plates, IA
etc. stickers or decals on the knobs,
yoke or body? What brand is the
reflector?
Reflector decal of brand don't persay mean what brand of
fixture but does home in on it if that brand didn't make their own like with Century having Major make reflectors. Obviously its a radil
fixture, what size hole is in the
reflector and in general, how did you change the lamp and or clean the
reflector? What type of knobs are used in general from focus to
yoke? What type of latches are used to latch it at the
gate if it opens? Do the
lens retaining rings have little bends to them as if
360Q or 65Q so as to
grip or not? Do we take it for granted its all stamped steel or are some of the perpendicular to the beam of light surfaces aluminum? Of them and given cast aluminum are they more or less
flat or as later more
pineapple like in casting? What's the quality of workmenship on the sheet metal - well fit and tight or a little lazy in form
fitting? Sheet metal screws, rivets, pound rivets or tapped machine screws holding it together? What's the width of
yoke strap? Often older ones were less in width like about an inch. Use any
cone washers? How do you
bench focus the lamp? What's the brand of
lampholder?
Asbestos pad under that
lampholder & solder terminals or screw terminals attaching
wire to it? Three brass
grommet holes for
wire to feed the
fixture or two?
What's the history of where the
fixture came from? That paperwork trail of where found can often also be really useful in figuring out where it came from as with local area old timers as it were in remembering stuff like where my Major Lekos and Fresnels came from. "I remember being in the factory...." Same person that was responsible for cutting like 1/3 the length off my Major PC
fixture so as to get a wider beam spread off it back in the 60's.
Send the photos around to your local old timers and if such records are around search when they were bought
etc. or at least where did you get them from specifically and what's the history of the place they were found in? With difficulty it should be possible by way of that building to find out who its lighting supplier was by way of origional concept in taking for granted these were found locally and the building was built at about the above timeline. What other ancient gear do you have in at times similar brands of gear were installed as a package deal.
Kind of a shame they were not medium screw PS type lamped dual lensed Lekos, still if medium
prefocus, that's still 60's at best and given the housing and nobody seen anything like this before very early if not earlier and important. ?Late 50's
thru Mid-60's and perhaps a smaller company attempt to match what someone else was doing only
thru a lesser quality in being able to do it version, or a really early version others copied in a more refined
lamp cap type of way. Still perhaps given the size of that
lamp cap housing, could be a PS type
fixture as possible was changed over at some
point. Much depends on what you detect in say extra holes in the mounting plate for
lampholder, different hardware mounting it or say screw based sockets instead of soldered connections to the
base.
Send more photos all about the
fixture, it is a fascinating
fixture. Got two Major Lekos... perhaps one for one trade if you have more than one. Fair traid in mine already being fully operable for
current standards
plug in ready.
