Some small propellers?

[mathat]

I have some small propellers i don't know are these even war related...
Might be just some industrial propellers but they seem fairly old maybe someone knows where they been used?

There's some numbers big one has 504 and small ones are 358A and 358

[rbminis]

Motorized scale boats and ships.
Or, old fans.
Ralph.

[mathat]

Motorized scale boats and ships.
Or, old fans.
Ralph.

oh yea could be i didn't know that those uses this big propellers but most likely they are...