Interesting this one because it is not an AGM. I have an advert in the Ironmonger Diary for 1922 which shows this as Stanleys model 210. It is also illustrated as Model 210 in Nulite catalogue No 76 which is about 1916. So made by National Stamping and Electric in Chicago and sold by Stanleys in the 1920s. So far it is the only non AGM Stanleys lamp I know of. ::Neil::
Interesting that this lamp has the same short air tube as The one upon my stanleys table lamp...The air tube opening is about level with the bottom of the mantles , does any one have any idea why this occurred...also I notice that my lamp does better with some regulation of the air supply...why ,outsides of sheer economy is there no such provision upon these lamps.
The thumb screw clamped shade holder in the catalog images is something I haven't seen before either. Bob
Air regulation was something lamp companies had generally dropped by around 1916. They designed lamps for a particular fuel and air regulation was redundant. Very few lamps need this anyway and generally you find the air/fuel mix is a fixed setting. We may now see a need for it but that is because of fuel spec changes from the older types these lamps were designed for. I have found that a lot of older kero lamps function better with a 10% to 15% addition of naphtha to the kero. There are lamps with air regulators but they are dual fuel lamps designed to work on different fuels and need this regulator to accomodate either gasoline or kero. None of them are common though and I suspect that is because the increased cost of manufacture made them expensive at the time and consequently less common now. ::Neil::
