Submachine Guns in South America during the 1930s

[HCV]

I am trying to find out which submachine guns were used during the 1930s in South America. I know or believe to know this:

Bolivia:
Bergmann MP28/II 9x19mm: Mod 1928
ERMA EMP 9x19mm: Mod 1931
Steyr-Solothurn S1-100 9x19mm: Mod 1932
Tikkakoski KP/31 Suomi 9x19mm: Mod 1931

Chile:
Steyr-Solothurn S1-100 9x19mm: Mod 193?

Ecuador:
Bergmann MP28/II 9x19mm: Mod 19??

El Salvador:
Steyr-Solothurn S1-100 9x19mm: Mod 193?

Mexico:
ERMA EMP 9x19mm: Mod 1931

Nicaragua:
Auto-Ordnance Model 1921AC Thompson .45 ACP: Mod 1927 (?)

Paraguay:
Bergmann MP28/II 9x19mm: Mod 1928
ERMA EMP 9x19mm: Mod 1931

Peru:
Steyr-Solothurn S1-100 9x19mm: Mod 193?

Uruguay:
Steyr-Solothurn S1-100 9x19mm: Mod 193?

Venezuela:
Steyr-Solothurn S1-100 .45 ACP: Mod 193?

Any comments or corrections? Many thanks!

Cheers

HANS

[Shadowstorm]

Will I know Bolivia and Paraguay used those submachine guns during the Chaco War in 1932-1935.

[Jorge M.]

Maybe if you ask in the fav-club forum they might give you most of the info you need. Heres their site www.fav-club.com (http://www.fav-club.com)

[alcantur]

According to bolivian military sources, these were the SMG in use until 1939:
? ERMA MP-35 cal 9mm parabellum [acquired in 1936]
? Madsen Madsen M/46 cal 9mm parabellum [acquired in 1938]

but other SMG were in use during Chaco war:
500 CSZ ZK-383 cal 9mm parabellum
2 000 Other SMG, including:
? Suomi M26 cal 7.61mm
? Suomi Tikkakoski KP31/M31 cal 9mm parabellum
? Vollmer 1930 VPM cal 9mm parabellum
? Bergmann MP-18I Schmeisser cal 9mm parabellum
? Bergmann MP-28II cal 9mm parabellum
? Bergmann M20 cal .30 MAUSER
? Steyr Solothurn S1-100 cal 9mm parabellum
? Steyr Solothurn S1-100 cal .45"ACP
? ERMA EMP cal 9mm parabellum
? ERMA MP-34 cal 9mm parabellum
? Thompson M1927 cal .45"ACP [captured to Paraguay]