This is an interesting find. It was a duplicate gift from my uncle many years ago. He collected watches and pens. The box is a Waterman's fountain pen and mechanical pencil set box from the 1940's. However inside is a Waterman's cartridge fountain pen and a Waterman's mechanical pencil from the 1950's. Both pen and pencil are beautiful examples of Waterman's quality. The Waterman pen has a 14K marked nib. Please view the pictures and ask me any questions you may have.