[CR] Cotter pins for Magistroni crank

Gidday from NZ again.

I need to replace the cotter pins on my late 50s Frejus

http://picasaweb.google.com/MarkABattley/1957FrejusSuperCorsa#51744014363120 09954

The existing ones, and the holes in the cranks measure up as 9.0mm (pins are about 8.9)

Harris has two version of 9mm cotters, one called "French Size" one "Peugeot Taper".

http://sheldonbrown.com/harris/bottombrackets.html#cotters

Does it matter which one I get?

And why is it 9mm when supposedly Italian is 8.5mm?

Thanks,

Mark Battley
Auckland, New Zealand