Auction # 2217 ARGENTINA: Special May auction

RARE POSTMARK: GJ.7d, 5c. with accent and semi-worn plate, splendid blue cancel "A. ZUBELZU - ROSARIO" in double ellipse, normally considered a mark of the sender, but this company could have operated as a stagecoach mail working with the National Post (similarly to GJ.MSJ 25, Aldao Acebal y Cía, of Rosario), very fine quality, rare!