The compact and lightweight SM-400 shares the fine qualities common to all the petosa SM models: Mahogany cabinet and reed blocks, all-leather reed valves, chromed bass mechanics, walnut keys with lucite tops, chrome hardware and more. This SM-400 was built in 1963 and is in excellent condition with two cosmetic exceptions (see photos). Completely Serviced, Certified & Warrantied for 3 years.