I had recently found a “Nasco Silver Plate - Charles VI” salt/pepper shaker in my garage. It looks really old and was curious about its origin and possible value and I couldnt find anything on the web about it so I’m thinkin maybe its one of a kind. Any help would be great 
Hi there and thanks for joining us. Your set was probably made by the National Silver Co. of New York, NY which used the trademank “Nasco” among many others betinning in about 1904. Like most American silver plated wares, it has little or no commercail value.
Your best bet is to gently polish them up with a mild silver polish and use them as daily salt & peppers. Your own family heirlooms!
Regards,
Uncle Vic