Green leather stamp album with rare stamps

Found a green leather stamp album this afternoon, around 3:15pm outside the Covent Garden Tube Station entrance on Covent Garden Piazza. It's about the size of a small notebook, with a brass clasp and a faded crest on the cover. Inside there are roughly 120 stamps, mostly from the Commonwealth, some with inverted watermarks, and a blue sticker on the back cover that reads 'LSE Stamp Club'. There's a faded handwritten note on the first page with the name 'Philip' in pencil, which might help the owner identify it. I really hope this is reunited with its owner soon.