The Cobblestone Society and Museum will celebrate the 150th anniversary of the construction of the Cobblestone School, Route 98, Childs, as part of the society's annual Old-Timers' Day from 1 to 5 p.m. Sunday.
A historic marker and a plaque will be dedicated at 3 p.m. A newly printed book about the school also will be introduced.
Admission to the dedication is free. Admission to Old Timers' Day activities is $4, with children eight and under free.
Old Timers' Day includes a variety of demonstrations of pioneer skills, such as quilting, spinning, weaving, chair caning, embroidery, tatting, exotic jellies and vinegars, soap-making and a blacksmith shop.
Antiques conservator Edward Cornwall will be available in the Brick House from 1 to 3:30 p.m. to appraise antiques for a fee of $3 per item.