Re:
Crikey, those are in good condition!
Given that they used the same pattern of cranks at different times in different groups, it's difficult to say.
I reckon they are Athena from the late 80s with those XX-AS rings on them.
The Athena and Croce D'Aune are very similar from the front, but the Athena is chunkier from the side and has a right hand extractor thread where the CDA has a left hand extractor thread.