This is the second variation of the Tilley EX4. It distinguishing features are: fixed XN control cock soldered to the tank; black bakelite control knob; and pressure release screw on top of the tank. Fixed control cock. Pressure release screw. Lower insect screen. Registered Design stamp: "RD 681681". Pressure release port. Pressure release screw. The burner air buttons that were on the lantern. They were in very rough shape and were replaced with new old stock. The one on the right is likely to be a Kayen air button. Original burner (removable spigot). Patent No. stamp. Original vapouriser. Note the long cleaning needle that developed curvature over the years because of its length. The red/brown hood was in fairly good condition. Note the white ceramic inside the hood. The original top insect screen that came with the lantern. It was in very poor condition and replaced with one in good condition. The reflector was repainted. I kept the original Tilley decal as best I could. Testing the original vapouriser and burner with new air buttons: Up and running [Korean made half frosted glass] ...and with a contemporary. This is a good lantern! Cheers Tony