1900 - 1950 Players rating
Rating players before 1950 is really complicated because there are very few videos and sources. To do this I based myself on all the reports I could find: newspapers of the time, books, magazines etc . If ten out of ten sources tell me that player X is the fastest player in the league, then I will give him a proper value. In general, where it is not possible to give ratings I have given 'standard' values. Let me reiterate: the values I have given are PURELY indicative.
Goalkeepers

R. Zamora
93 - GK

F. Plánička
90 - GK

G. Combi
Available soon

R. Hiden
Available soon

R. Maspoli
Available soon

J. Darui
Available soon
Defenders

J. Nasazzi
91 - CD

Domingos
90 - CD

P. Rava
Available soon

E. Hapgood
87 - LB

N. Franklin
Available soon

J. Quincoces
87 - CD

P. Janes
Available soon

K. Sesta
Available soon

J. Burgr
Available soon

C. Parola
86 - CD

C. Sosa
Available soon

T. Svenssen
Available soon
Midfielders

O. Varela
88 - DM

L. Monti
88 - DM

Zizinho
92 - AM

V. Mazzola
91 - AM

J.M. Moreno
90 - AM

G. Ferrari
89 - CM

J. Andrade
90 - DM

A. Sastre
87 - AM

G. Sarosi
89 - AM

J. Smistik
85 - DM

F. Szepan
Available soon

S. Andersson
Available soon
Strikers

A. Pedernera
90 - SS

D. Dean
89 - ST

F. Binder
87 - ST

A. Erico
89 - ST

G. Szengellér
Available soon

R. Orsi
90 - LW