Just a heads up: there's a Cavagnolo 4 row C-System 120 bass (3+3 I think) CBA on ebay in "opened but never used" condition.
ONE DAY LEFT
https://www.ebay.co.uk/itm/Cavagnol...405018?hash=item3fe2e20d5a:g:rGIAAOSwX09e2472
I was thinking of bidding when it was £150 this morning but it's now £500 and that's too much for me given I can't actually play CBA
I'm fairly sure it's a Cavagnolo Orchestre 5 /120, which are £7000 new or £1500 ish used.
https://cavagnolo.com/en/accordeon/orchestre-5/
ONE DAY LEFT
https://www.ebay.co.uk/itm/Cavagnol...405018?hash=item3fe2e20d5a:g:rGIAAOSwX09e2472
I was thinking of bidding when it was £150 this morning but it's now £500 and that's too much for me given I can't actually play CBA

I'm fairly sure it's a Cavagnolo Orchestre 5 /120, which are £7000 new or £1500 ish used.
https://cavagnolo.com/en/accordeon/orchestre-5/