Typographed on Grayish Paper With Security Printing on the Inside by the
Casa Moneda de Buenos Aires

Embossed on Upper Right Back Flap "CASA MONEDA"
Envelope Size: 151mm x 120mm

Envelope Front Inscribed on Top Side With
"Ademas del valor del timbre un centavo por el sobre (Ley de Tarifas)"

Master Die Proof in Black
On Black Background, Without Value

1907, FEBRUARY 26: BUENOS AIRES to FRANCE
5c Dark carmine envelope with added 10c adhesives for proper
single outbound rate.

Gral. San Martin Stamp Design Omitted on Envelope With
"CASA DE MONEDA" Embossing and Filigree Security Printing on the Inside
Inscribed "SERVICIO DE CORREOS * REPUBLICA ARGENTINA"

ONLY KNOWN