File:Guāng Xù Tōng Bǎo (光緒通寶) scanned image.png - Wikipedia
Customers scans the HHeaveHomeSafe" (a contact tracing app) QR code walking into restaurants during lunch time at the U-Banquet-The Starview restaurant in Kwun Tong. 29AUG22 SCMP/ Edmond So Stock Photo - Alamy