CAJUN ACCORDION DISCUSSION GROUP
http://pub21.bravenet.com/forum/static/show.php?usernum=1722942123&frmid=16&msgid=1050959&cmd=show This seemed to cover a lot. This was a pretty recent thread from last July.
I know that Nout had one a few years ago. Maybe he can tell us something.
There's one currently for sale on Elderly Instruments' website: http://www.elderly.com/vintage/items/160U-533.htm
And hugely overpriced.
They are still built new by Zero Sette in Italy, very expensive there, and IMHO not worth more than a souped up Cajun King. See: http://www.accordionsoflondon.com/index.php?page=shop.product_details&flypage=shop.flypage2&product_id=214&category_id=17&manufacturer_id=0&option=com_virtuemart&Itemid=26. A fair price for an oldie if in good condition would be some 700 to 800 dollars ... advice from a person well familiar with those melodeons by trade. - Nout
That's $2,327 USD new delivered in UK!
20% of that is Tax... making it around $1900 USD. Depends on the mechanisms and the quality of the reeds, tone and playability as to what it is worth. A Castagnari is around the same price. I would think the box on Elderly's site is worth $850. Be wary of Elderly's descriptions. I have had three unfortunate experiences with their used accordeons.. all because of incorrect descriptions.
It looks like it is on consignment, so I guess they are using the sellers description.
The description is typical of Elderly with some obvious input from the seller.