A Victorian-era mustache shaving mug constructed from glazed porcelain. The vessel features a molded body with scalloped, shell-like ridges, a scrolled handle, and a footed base. A horizontal ceramic bridge is integrated into the interior to keep a mustache dry during use. The front of the mug is decorated with a hand-painted portrait of a bay horse head in profile, detailed with a white blaze and bridle, set against a background gradient transitioning from light yellow to deep green. Gilt highlights are applied to the handle and the molded ridges of the body. The green molded foot area is incised with the numbers 3 5 5 9 above a single 3, and the flat white center of the base is incised with the number 466.