The "Isle of France" was the French name for Mauritius. The British conquered it in 1810 and it was ceded to them in 1814, after the defeat of Napoleon. Whether it was in fact used as a penal conoly or not - or as a staging post to the East, I don't know. Wolfgang's set look much as I recall it. I vaguely remember seeing it in print once - but can't find it among my own stuff.

Regards

p.s. I presume that's Desi-the-flute? I'm in Athlone IT - give me a shout if I can be of any help.