I have a beautiful invalid cup. You’ll also see them called pap boats or infant feeders. They were used in the 1800s and early 1900s to feed broth, liquids or thinned foods to people that couldn’t sit up and feed themselves. This one is white porcelain or ceramic with flowers. It is 4 1/2 inches long and 2 1/2 inches tall. The bottom says made in Japan. The last 3 pictures show other ones that I’m listing. See my other ads for jewelry, artwork, home decor and more.