Mint vintage stamp album with red leather cover

I found a mint vintage stamp album this afternoon around 2:15pm outside the San Diego Central Library near the Park Blvd entrance. It has a deep red leather cover and clear plastic sleeves, with stamps dating from the 1930s to the 1950s peeking through. The outer corner is a little worn, and there's a small pencil note inside that reads 'For the collector with a slow day'—clearly a serious hobby item. If the owner sees this, I’d love to reunite it with you; it clearly means a lot to someone who cares about philately.