Possibly school or military calisthenics. Turned wooden dumbbells, hand-lathe made, likelymaple or beech, dating roughly1870–1910. These authentic Victorian-era dumbbells date to the late 19th century and were hand-turned on a lathe from solid hardwood.
The Antique Victorian Wood Wooden Dumbbells would be a perfect fit in a gym or fitness center seeking handcrafted, old-timey weights for adding an air of nostalgia to their environment.