Accordion - Contello

I have a 1960's Contello student model Italian piano accordion. It comes with staps, case and book. There are 2 reeds in octave tuning in 3 instruments. It has 41/120 treble keys and buttons. It is black with pearlized celluloid and wooden keys. The bellows are fine and there are no leaks! It is 17"x16". It is in excellent condition.