3 1/4" X 4" (83mm X 102mm)

No markings

Picture courtesy Pablo Daniel Sueldo

3 1/2" X 4 1/4" (90mm X 110mm)

(crown inkstamp)         T.N.R.A. 1895                    

{Telegrafo Nacional de la Republic Argentina}

Picture courtesy Pablo Daniel Sueldo

3 1/2" X 4 1/4" (89mm X 108mm)

(incuse)         F.A.P.A.                    

IND. ARGENTINA

Picture courtesy Barrett Nicpon