Small metal tool with a hooked serrated end and a wooden handle

The small metal tool with a hooked, serrated end and a wooden handle is most likely a fish scaler.

A fish scaler is a kitchen tool used to remove scales from fish before cooking. It usually has a sturdy handle and a metal head with serrated or rough edges designed to scrape the scales off the fish skin.

To use it, you hold the fish firmly and scrape the tool against the direction of the scales. The serrated edge catches and removes the scales without cutting the flesh of the fish.

These tools were very common in older kitchens, especially when people prepared fresh fish at home. The curved or hooked shape helps reach different parts of the fish easily.