Vintage stamp album with rare UK stamps, red spine

I lost my vintage stamp album yesterday around 3pm near the Grainger Market entrance on Grainger Street in Newcastle. It’s a slim, black leather-bound album with a red spine, about the size of an A5 notepad, a bit worn along the spine. Inside are stamps from the 1960s to the 1980s, neatly organized in clear sleeves, with a few Canadian and Australian issues included. There’s a faint coffee stain on the back cover and a small pencil note on the inside front page that reads 'Deluxe Collection'. This album means a lot to me—it’s been in the family for generations and I really need to get it back.