Red leather stamp album with vintage stamps

I found a vintage stamp collection this afternoon around 2:15 pm, tucked inside a red leather-bound album with a brass clasp and a tiny magnifier attached to the spine. It was sitting on a bench behind the downtown Gainesville Post Office on Main Street, not far from City Hall, near the bus stop. Inside, there are stamps dating from the 1920s to the 1940s, including a few German and Japanese issues, plus a pencil note on the inside cover that reads 'No. 17.' The album shows some wear, and a corner is slightly torn, but most stamps are still in decent shape. If this belongs to someone, I’d love to help return it—if you recognize these features, send me a message.