I Found Some Old Ampol Car Cards from 1952?

my dad found 2 old Ampol car cards from 1952, they are in pretty good condition so i'm just wondering what they would be worth ?

Suggestion:

You should contact a specialty collector's shoppe or appraiser or search for the values of recently-sold similar items on eBay to give you a reasonable estimate of their current value.

Best of luck. I hope this helps.