Antiques Appraiser is utterly abusable and I love it. So I recently aquired Antiques Appraiser on Lucia after biting the bullet and rushing rank 7 barter. I've spent my first several hours of the game being pretty frugal and saving all my acquired junk until this point. 

At the HQ armoury shop, I hit the sell all button and went from ~1k to ~9k cash. I thought huh.. 5% chance for this bonkers effect to proc? Let's quickload, roll the dice and try again. 


After my second attempt I now have 59k cash. Money issues handled.