Oh dear. I know much this site hates these sorts of things. Sigh. Here I go.
OK. I have a mug which a friend gave to me many long years ago. They weren't Japanese; they just thought it was a nice mug and figured I could read it. Which at the time, I couldn't. Here are four pictures showing the written text.
I can actually read most of this: 仲よきことは?しきかち。
I have some guesses for the kanji I can't read: 美しい or 楽しい. In fact, a web search brings up the following
仲よきことは美しきかな
But I'm not sure that that character really looks anything like 美. I'm just guessing at 楽.
What say you all?