F. J. Henry

• Backing electrotype shells
• Dressing the backs of electrotypes
• Durability of electrotype plates
• Electrotypers' battery vats
• Electrotypers' molding composition
• English and American electrotypers
• Forms for electrotyping
• Locking up forms for electrotyping
• Machines for blackleading electrotype molds
• Mounting electrotypes
• Prices for electrotyping
• The preparation of wax molds for the battery