After much help from this concertina community I am going to place my concertina on eBay; however, prior to this I thought I'd offer it first to this community. I never did find serial no 2474 in the Sales Ledgers but did find no's before and after, thus sales-dating it around Feb 1851. It had minor restoration work done a few years ago by The Button Box, Northampton, MA. All notes work in and out and it's a sweet, bright sound. Case is original but key and handle are missing. Read Dating & Pricing topic in Concertina History forum dated 11 August for pictures and more info. If you'd like more photos, such as of the reeds, etc, let me know. Anyone interested in making me a reasonable offer, please email me at SteveDennehy@comcast.net. Postage and insurance would have to be calculated based on location and buyer would be responsible for import duties and the like. It would be nice to sell it to someone who would take care of it and, most importantly, play it. Thx again for all your help.