1856, Goold Brown,The First Lines of English Grammar, page10:
These names[…] may form regular plurals; thus,Aes,Bees,Cees,Dees,Ees,Effs,Gees,Aitches,Ies,Jays,Kays,Ells,Ems,Ens,Oes,Pees,Kues,Ars,Esses,Tees,Ues,Vees,Double-ues,Exes,Wies,Zees.
1998, Ricardo Corona, "These Esses" ("Esses esses"), inOther Shores (Outras Praias), translated by Ricardo Corona & Charles Perrone
to say (full of ees, ies,ues) that plurals are always two or more