Manufactured in 1973 by petosa, the Gian Scala PF-1600 is identical to the petosa model AM-1100, an instrument which stands alone as the highest quality accordion in production today. 100% solid-walnut keyboard construction, mahogany cassotto, world famous and sought after "Guidobaldi" handmade reeds with genuine calfskin reed leathers, all chromed bass mechanics and much more. Referred to by many as the 'Stradivarius' of accordions. Beautifully maintained, completely serviced, Certified & Warrantied.