The banknote grading company Paper Money Guaranty® is expanding to certify collectibles from the world of scripophily.
What was the highest priced scripophily sale at auction in 2018? Was it an American stock certificate or maybe a Chinese government bond? None of these, says Franky Leeuwerck. It was a French share and it was sold in Boone's 60th Auction, at Antwerp on April 14, 2018.