Unrelated to potty chairs but definitely related to potty going, I was poking through EEBO not too long ago and came upon this:
Author: Brome, Alexander, 1620-1666. Title: Ratts rhimed to death. Or, The Rump-Parliament hang'd up in the Shambles. Date: 1659 Reel position: Thomason / 219:E.1761[2] Copy from: British Library
With this poem:
Bum-Fodder, or Wast-Paper proper to wipe the Nations RUMP with, or your own (page 40 of the original document)
no subject
Author: Brome, Alexander, 1620-1666.
Title: Ratts rhimed to death. Or, The Rump-Parliament hang'd up in the Shambles. Date: 1659 Reel position: Thomason / 219:E.1761[2]
Copy from: British Library
With this poem:
Bum-Fodder, or Wast-Paper proper to wipe the Nations RUMP with, or your own
(page 40 of the original document)