How to Check the Authenticity of a Howard Miller Clock

Howard Miller Graham Bracket Mantel Clock – Key Wound Mechanical Clock with Westminster Chimes, Ornate Silver/Gold Dial, Wooden Finish, German Movement, Chime Silence Option, USA Made

Howard Miller Emmett Wall Clock II, Espresso Finish - Silver Finished Pendulum, Wenge Style Chrome Accents, Quartz Movement Soft Ticking Wall Clock for Bedroom, Modern Grandfather Clock