Zenón Díaz & Harry Hayes

Two of Rosario Central's early stars showing off some of the club's trophies.
Club Atlético Rosario Central evolved from Central Argentine Railway Athletic Club in 1904. The Liga Rosarina de Fútbol was founded in 1905, and Central won the first of their league  titles in 1908. They were Liga Rosarina champions 11 times during the  the amateur era (which ended in 1931). Rosario Central also won the following National titles: Concurso por Eliminación (1913); Copa Ibarguren (1914); Copa de Honor &  Copa Jockey Club (1916); Copa Competencia (1920). 
On the left is  Zenón Diaz , who, in Argentina's 4th international (15.08.06), became the first 'native' and also the first non-Buenos Aires player to be selected for Argentina. 
 To the right is Juan Enrique Hayes. Hayes, known as 'Harry' (his parents were English) was Rosario Central's first ever purchased player. He was 14 years old and his services cost the club a fee of A$4. In 1914 Hayes scored 51 goals for Central in a 20 match league season. Hayes represented Argentina 21 times (1910-19) and spent the entireity of  his 19 year club career at Rosario Central .
The photograph apparently dates from 1908, so among the silverware on display would be Copa Nicasio Vila  (Rosario First Division) and Copa Santiago Pinasco (championship of the second tier in Rosario). 

Copa Centenario Revolución de Mayo 1910

This was the first tournament in South America to involve more than two countries. All previous international competitions had involved just Uruguay and Argentina.
It is therefore considered a proto- South American Championship.
The influence of English, Scots and German immigrants was still very much in evidence in the South American cone.

Chile

The tournament marked Chile's debut in international football. The Chilean Football Federation was founded June 19th, 1895, making it the second oldest South American federation,

In the opening match Uruguay defeated Chile 3-0. Jose Piendibene and Robert Sidney Buck scored for Uruguay. In 1912 Buck represented Argentina against Uruguay!

Hosts Argentina then beat Chile 5-1 to set up the decider.

Argentina beat Uruguay 4-1.
Argentina's scorers in this win were José N. Viale (Newell´s Old Boys), Juan Enrique Harry Hayes (Rosario Central), who was the tournaments top scorer, Arnold Pencliffe Watson Hutton (Alumni AC), son of  Alexander Watson Hutton, the Scotsman known as the father of Argentine football, and  Maximiliano Susán (Estudiantes), a student veterinary surgeon and Argentina's leading goalscorer at the time. 

Harry Hayes (Argentina) top scorer with three goals. His parents were English.