Hi list I am in need of some help-I just purchased a enlarger made I was told in 1940.Company name is ELWOOD.It is cast iron weighing about 60 lbs,with a sheet metal mixing chamber 2'4" in circumfrance.with the enlarger head lowered almost to the metal baseboard,it stands5'5" tall and when the head is almost to the top it is close to 8'.It has a recessed lens board and also a homemade one that is not recessed.it has a pull out negative carrier that takes any format.Inside the space where the neg carrier is,there are four knobs that can be used to crop,where you do not have to use tape on the negs.The light comes from a 150 watt bulb.I am trying to find out if there is somewhere I could get documentation on this enlarger. any help would be appreciated thanks gordon