Helped to identify

[parts4porsche]

Hello fellows. Could someone help me to identify this odd crank?

Looks like it was lightened. I don't know if it's factory

Thanks
Tadashi

[proporsche]

to insert a picture go to advance and there is a blue line link..
Ivan

[parts4porsche]

Tried several times

[parts4porsche]

I am trying on the mobile. I will try later from my laptop. I edited the picture to make it smaller. But still not working

[parts4porsche]

here it goes

[gled49]

Home made or 906. Deep clean it and post more detailed pictures.