I've just found this in W Camden's "Remains Concerning Britain". I will quote the whole thing:
But I will end with this of Odo, holding Master Doctour's Mule, and Anne with her Table-cloth, which cost the Maker much foolish labour, for it is a perfect Verse, and every word is the very same both backward and forward.
"Odo tenet mulum, madidam mappam tenet Anna.
Anna tenet mappam madidam, mulum tenet Odo"
But I will end with this of Odo, holding Master Doctour's Mule, and Anne with her Table-cloth, which cost the Maker much foolish labour, for it is a perfect Verse, and every word is the very same both backward and forward.
"Odo tenet mulum, madidam mappam tenet Anna.
Anna tenet mappam madidam, mulum tenet Odo"