Katana (long sword) blade.

Title: Katana (long sword) blade.
Description: The Katana blade is forged from steel, signed and dated by its creator: Kawachi no kami Sukesada (河内守祐定). Its careful creation is protected inside the sheath: crafted from makie lacquered wood and decorated with gilded copper braid and silver.

This sword is from the Eisho era, dating from 1504 to 1521.