Balvenie Founders Reserve 10yr old in Cognac shaped bottle

[speedycar53]

I need some help valuing and maybe selling this rare item.

It is a bottle of Balvenie Founders Reserve 10yr old 40% in the unusual Cognac shaped bottle. I know it to be very rare and mostly either drunk or in the hands of collectors. So I know it is of some significant value to collectors and aficionados. Although I enjoy my whisky, I am not that fanatical.

The bottle is sealed (of course!), there is no box and the label is not quite pristine due to its age and past storage environment. I have a picture at this link - haven't worked out how to display in post.

https://93yxrg.bay.livefilestore.com/y2pRrAeOjtjXVbxb1JRcWcUSfbRnr2mxpa5D39adS2NczJeEgsL4CieTLTdARlePAsirn1bKdcnbg-pxGObpYvKVLlqMroesdgB901_vAXP67Y/Balvenie%20Founders%20Reserve%20-%20Cognac%20bottle%20-%20web.jpg?psid=1

Please can I have some advice on its value, market conditions, and selling it.