What are "variant" maxicards?

Compare the two maxicards here and you would notice these few points:

 i) bearing the same stamp

ii) different postcards, but with the same subject

iii) postmarks are different

When these conditions are true, they are known as "variant" maxicards.

(I accidentally cropped off the bottom white margin for this postcard during scanning! :)...)

"When the stamp is the same on different postcards with the same subject and different postmark we call them 'variant' maximum cards" FIP