Cast Aluminum winch crank Manufacturer

Does anyone know who makes the breakable cast aluminum cranks we have all grown to love?
 
thanks

I always get mine from Flying Scot Inc, usually 5 at a time.  When a fellow Scot owners needs a crank, it's only right to hook them up with one from your stash...

You can buy cranks from different sources but does anyone know who makes them? thanks

I suspect the handles are custom made by or for Flying Scot Inc.  You will need to contact them to find out who makes them.

Well I found out that the handles are made by 
Fulmer Company in Export, PA
an aluminum foundry. I wrote to them and they have yet to respond to me....

What's your question?  It seems any info on the cranks would be available from Harry.  I would imagine there are not a lot of other uses for them.