In the screenshot below I am the white "h" in the very bottom-right. I can see that the lamp to the north is a plain oil lamp based on the price, even though it is too far away to see the identity. It is type-named and upon stepping closer changed to "lamp called plain {buy 13-18}".

In the screenshot below I am the white "h" in the very bottom-right. I can see that the lamp to the north is a plain oil lamp based on the price, even though it is too far away to see the identity. It is type-named and upon stepping closer changed to "lamp called plain {buy 13-18}".