En passant, just bought a double sided 80 hole C H Messner harp, on E-Bay, which is totally indistinguishable from the equivalent Hohner Model. The model is called a Loreley, which I believe was also used by Hohner as a model name. I cannot find out how old it is, the guy who sold it, says he bought it in Switzerland with the intention of learning to play, and he never did. It came in the original box, with the original tissue paper wrapping round the harp inside.
It plays beautifully, and I am forced to conclude that the old ones were better made than the new ones.