Pair of men's and lady's clamp on ice skates made at the top of the 19th century.  The men's skates have their key for adjustment.  The lady's blade length is 9 1/2" long.  The metal clamp shoe portion is 8 1/2" long.  The skates are incised with the number 508A. These skates have heavy oxidation from years of storage.  The men's ice skate blades are approximately 12 1/2" long.  The clamp on shoe portion is 11 1/2".  Both pairs have heavy oxidation from years of storage.