I forgot to mention that some Zella-Mehlis examples were proofed as early as 1901 and possibly earlier. Wes' February 1911(ZM proof rules - September 1911) proofed drilling below as a script "E" in the same position of the "T" on the Monopol but also wears the appropiate "Crown" over "N".





Kind Regards,

Raimey
rse