小座高一肘，口是圆的，仿佛座的样式；径一肘半，在口上有雕工，心子是方的不是圆的。

And the mouth of it within the chapiter and above was a cubit: but the mouth thereof was round after the work of the base, a cubit and an half: and also upon the mouth of it were gravings with their borders, foursquare, not round.