Estimates and Fees | A Typical Project | The Design Process | Philosophy Frederick Law Olmstead State Memorial Plaque Frederick Law Olmstead State Memorial Plaque, designed by Ted Osmundson, built of indigenous sandstone. Wall and Fountain Wall and fountain commissioned by Paul and Robin Cowley of Potomac Waterworks. Bread Oven The stone work commissioned by Holly Scott includes a sandstone veneer over a bread baking oven designed by Alan Scott (keyword:ovencrafters).