small kerosene lamps, glass and tim?

I am incharge of a small Pioneer Village. People ask me what these lamps are and I am at a loss. The first is a small lamp with a metal base that comes in two parts. the glass bowl has a glass tub going through it. Why is it there and what is it. The burner is a number 1 Queen. It stands about 8" tall. The second seems to be a tin lamp with a standard #2 burner. Any ideas about eather one of these lamps? I know nothing!

Thanks for any help

Steve Nelson