early-1900s

A friend got this at a yard sale and gave it to me. It's in the style of a hymnal but it has all sorts of different folk tunes and hymns that were sung in the early 1900s. If anyone else has an interest in stuff like this feel free to reach out.

My uncle gave me permission to detect a rental house he owns in the small town of Clinton, Indiana. He said the house was built in the 1890s. My favorite find was what I think is a brass/copper alloy ring with a fake Opal from the turn of the century. Second favorite find is a 1910 Barber dime...

last winter, i detected this buckle at a family member's property in rural Olympia, Washington. His house was built in the early 1920's, and previously had livestock. Could it pre-date the 1920's? (because I also found square nails which I know haven't been used since the 1890's.) I do not...