This lamp first appears in a supplement to the 1910 catalogue and is advertised as smallest inverted lamp of the IDEAL-series. It shows up in the 1919 catalogue for the last time. The casing is made from aluminium, the tank from copper so this was a kind of classy version. It is rated 200HK. In 1910 it cost the sum of 75 Marks. (75 Mk. of 1910 would equal about 1000 Euro of 2011) This one is in working condition although the nozzle is worn out a little. It now runs OK on alcohol, but was designed to run on kerosene. The globe is missing. The image from the 1919 catalogue shows the 390a model which had a fuel capacity for 22 hrs. (390 -> 12 hrs.) and a magnetic fuel level indicator. There are no prices given in the 1919 catalogue. Erik
