![](https://filateliaarguello.com/wp-content/uploads/2023/11/455CI-FRENTE-300x376.jpg)
INVERTED CENTER, WITH ORIGINAL GUM, UNHINGED
1917. SAN MARTÍN. $20 SLATE BLUE Y BURGUNDY RED. HORIZONTAL HEXAGONS WATERMARK. PERFORATION 13 1/4. INVERTED CENTER. CANCELLED WITH BLUE PENCIL STRIPE. WITH ORIGINAL GUM, UNHINGED (+50% MNH VALUE INCREASE).
![MONUMENTO A JUAN BAUTISTA ALBERDI](https://filateliaarguello.com/wp-content/uploads/2015/01/6018-thickbox_default-MONUMENTO-A-JUAN-BAUTISTA-ALBERDI-300x300.jpg)
JUAN BAUTISTA ALBERDI MONUMENT
SAN MIGUEL DE TUCUMAN – WITH SEATED LIBERTY STAMP 1904
![CALLE LIBERTAD, HISTORIA POSTAL S.M. 1917](https://filateliaarguello.com/wp-content/uploads/2015/01/6322-thickbox_default-CALLE-LIBERTAD-HISTORIA-POSTAL-S.M.-1917-300x300.jpg)
LIBERTAD STREET, POSTAL HISTORY S.M. 1917
LIBERTAD STREET, POSTAL HISTORY S.M. 1917 WITH G.J. 424(x2) + 425, CIRCULATED AS A FORM TO BUENOS AIRES (25NOV1917) TO PARIS – ED. BY O.H.B.A.
![ESCUELA NACIONAL LUIS CLAVARINO](https://filateliaarguello.com/wp-content/uploads/2015/01/5982-thickbox_default-ESCUELA-NACIONAL-LUIS-CLAVARINO-300x300.jpg)
LUIS CLAVARINO NATIONAL SCHOOL
LUIS CLAVARINO NATIONAL SCHOOL – ED. BY A. MAURI
![](https://filateliaarguello.com/wp-content/uploads/2015/01/1357-thickbox_default-RIO-LUJAN-300x300.jpg)
LUJAN RIVER
BUENOS AIRES – TIGRE – CIRCULATED WITH COAT OF ARMS & BELGIUM POSTMARK – ED. J. PEUSER Nº 77
![TELEGRAMA DE LUJO](https://filateliaarguello.com/wp-content/uploads/2017/01/22778-thickbox_default-TELEGRAMA-DE-LUJO-300x300.jpg)
LUXURY TELEGRAM
FORM T.L. 1(LUXURY TELEGRAM 1). ISSUED BY LA CASA DE LA MONEDA DE LA NACIÓN, ON WHITE PAPER WITHOUT WATERMARK. RECEPCIONATED 10/03/46.