Picked up these little cans from a local online seller. Her father built them “many years ago”... The tubes are bent for specific lanterns. Two work well for my Colemans and Optimus. There’s no air return, but the flow is okay for filling the pan.
They are nice. I have same Coleman kerosene lamp and they are a pain to fill. I ended up using a syringe with a bent piece of pipe on the end, it wasn’t / isn’t pretty!?!
@Max Stone They look good and once you get the twisting action worked out those goose neck fillers are easy to use.