A five row accordion

Manfrini accordions were manufactured by Manfrini Giocondo between 1936 and 1942, after which production was apparently continued by Gioncondo’s descendants under the factory name Figli Manfrini (Sons of Manfrini) and later Manfrini Accordions until 1983. Robert Rolston re-introduced the Manfrini Accordions name in 2008.