What is this organ?

[greatcyber]

As requested, This organ is located in a French city called Vannes, in the region Bretagne.

[pcnd5584]

That's the one I was referring to. And yes, I agree that C-C had to have been one out of many. There's a story that when the organ at St. Ouen was built, he nearly bankrupted his company making sure that the organ was what he wanted it to be.

Not quite - it was largely a result of the Franco-Prussian hostilities (July 1870 - May 1871). English friends were influential in gaining him some contracts in the UK, although his instruments did not become as popular as might be hoped and his influence remained chiefly in the north of England, some isolated exceptions being the instruments at the abbeys of Paisley and Farnborough.

In any case, he did not exactly undercharge for his services. For his work at Nôtre-Dame de Paris (admittedly over the period 1862-8), he charged FF65,899.40. I estimate this to be approximately equal to a current value of £850,000, or $1,209,677 at today's exchange rate.