51�Թ�

The new appeal came as US media reported a backpack thought to belong to the suspect recovered near the scene contained a Tommy Hilfiger jacket and paper money from the board game Monopoly.

Most vendors refuse to accept worn-out paper money, he explains, and coins have fared little better.

The researchers say their dual-mode, ambient and polarized light film has potential value for a wide variety of high-level security applications, like seals for authenticating paper money or ID badges.

“I’ll take two,” he said, waiting for her to deliver them to him — in exchange for some paper money.

China has moved away from paper money and coins, a trend that accelerated during the pandemic.