Searching informations about Italian Props (for Ansaldo SVA.5)

[Xan]

Hello,
I am searching information about Italian props , and more precisely about Ansaldo SVA.5 propellers.
I founded SVA.5 had SFA 6 engine, ut I didn’t find anything about italian propellers
Windsock datafile proposes two propellers models:


http://www.woodenpropeller.com/forum...EAAAICRAEAOw==

The first one seems to be a bolt propeller:

http://www.woodenpropeller.com/forum...EAAAICRAEAOw==

But propellers I am searching seems to be the second one…

http://www.woodenpropeller.com/forum...EAAAICRAEAOw==

http://www.woodenpropeller.com/forum...EAAAICRAEAOw==

So I take all informations:

1) What could be the second propellers brand ?
2) Which were the Italians propellers brands or firm ?
3) Was Bolt an italian firm ?

Thank you

Xan Berasategui