Built in 1964, this petosa SM-400 features all of the high-quality materials that are found in all petosa models: mahogany cabinet and reed blocks, all-leather reed valves, chromed bass mechanics, walnut keys with lucite tops, wood/felt/leather pallets, stainless steel bellow corners, chrome hardware and more. A compact and lightweight accordion (16 3/4" keyboard); completely serviced, certified & warrantied for 3 years.