Silver Shaving Mug and brush

"This stirling silver shaving mug was used by my great uncle, Fr. Ed O'Sullivan, first rector of Harrison Parish, New York City, until his death in 1915. It was then used by his nephew (my uncle), Head master Caherciveen Vocational School, until his death in 1939. I started using it it daily since 1966. A new brush head was fitted a few years ago."