I am old enough to have heard the early Tannoy Dual Concentrics when they first came on the market but have no particular recollection of having done so. I bought my first Tannoy in 1955, by which time the production finish had changed from the black crackle to a silver hammertone.
Now, I appreciate that mental accuity and other cerebral undertakings have deteriorated as a function of my advancing age but I am sure that what (incorrectly) has become known as the "Black" model was manufactured only in 15" diameter; the "Twelve" as it was known, not being introduced until the silver finish was adopted in, I think, 1954. As a consequence, I should be very careful about establishing the provenance of this particular driver which sports an HF cover unrecognised by me. A curiously high number of these in recent years have been offered for sale by Chinese vendors.
In any event, unless some fanatical collector is silly enough to pay three grand for this driver, the short answer is it is not worth the money. If one actually wanted to listen to it rather than lock it in the vault with the Modiglianis, Van Goghs or first edition portfolio Shakespeares in the expectation that the market value will appreciate, then the monetary value is but a small fraction of this lunatic price.
