Meanings of little octagon in English

The little octagon marine case which is seen almost every where, was originated and first made by me.

Opposite the window, a large, polished oak dresser displayed an array of large flowered plates and little octagon-shaped glasses.

Now, that little octagon Baptistery stood where it now stands (and was finished, though the roof has been altered since) in the eighth century.

72 now and I have a funny little octagon-shaped bedroom all to myself, and two room-mates, I. W. and J.S.

"Well, then," she answered, "give me the little octagon beside your own:"-thesmallest and simplest, but to my taste the prettiest, room in the house.