i have NEVER seen 50mg caps of anavar. sounds fishy like they could be anadrol which is cheaper to buy, and just called var to make an extra profit.
i have seen liquid var go pretty high though but not up to 50mg except for the stuff i make for myself
anavar should be split up throughout the day anyway so uless you plan on running 100mg ed, those size caps would not work well.
i hope the price is at least $7-$10 per cap at that dosage. if it is less than $5 each i would definately say that it is not var!