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@leylandp38
The crank isn't that oldfashioned as it's cotterless. So that means it's most likely ISO (English) or Italian. From the outside, dead easy to tell if you accurately measure the shell (frame part the BB sits in). Italian is 70mm, ISO is 68mm or 73mm.
If ISO the left hand side will be left hand threaded. If Italian, both sides will be standard right hand threaded.
Highly unlikely to be any other type as they are all too old. If you want more info, read Sheldon:
http://www.sheldonbrown.com/gloss_bo-z.html