buying bags from 2nd hand shops is definitely a risk taking experience if you do not have knowledge of the brand you are looking at.
Firstly, you have to equip yourself with infos that the authentic bag, like the leather quality,
the feel of the material - how the touch differs from the main store bags.
if it is a seasonal bag that you are looking at, make sure you know that it that "certain" season, the maker really have this design.
the pricing has to be logically priced too, cheap pricing on some designs can be fishy.
most important shop at shops that you feel at ease.
For me, i only got two
fendi bags from 2nd hand, the attic place and bagzaar. I feel that these are very reputable business owners. no doubts.
If you want security and good offers, wait till gss. Normally you can get 40% in miu miu,
prada, up to 50% in
gucci. but these are past seasons.
or you can take up shopping centers privilege card like taka, isetan to earn excl discounts and entry to brands like,
fendi, gucci, hermes,
loewe, dior...
That's a better way to own then risking to buy at preown shops you dun trust.
Happy buying for your dream bags.