Is this timeline ok for citizenship? (1948 rule)

[nediazm]

Pietro Vaudagna (21/06/1883 Italy - 03/02/1935 Argentina)
&
Domenica Bongianino (14/07/1886, Italy -1964, Argentina)
Married 29/01/1906 in Borgo d’Ale, Vercelli, Italy

↓

Maria Esther Vaudagna (2/12/1926 Argentina - 11/05/2011 Argentina) / Born as Italian Citizen by Birthright (Child of Italian Citizens)

↓

Pietro Vaudagna Naturalization in Argentina (22/08/1927)

↓

Maria Esther Vaudagna
&
Marcelo León Seguin
Married 23/12/1946 in Olivos, Buenos Aires Province, Argentina

↓

Marcelo Pedro León Seguin
Born 16/09/1947 in Olivos, Buenos Aires Province, Argentina / Child of Italian Citizen, need to appeal because of 1948 rule.

↓

Marcelo Pedro Seguin
&
Leonor Matilde Comte
Married 20/01/1976 in Olivos, Buenos Aires Province, Argentina

↓

Marcelo Pedro León Seguin
Born 18/10/1976 in Olivos, Buenos Aires Province, Argentina

[mler]

Timeline looks good for a 1948 case.