Just picked up a desk set that isn't like any I've seen. (though some of you probably have).
it's a double 444 (which I believe is a 447) but it's the kind with the drop-in wells. I've seen a few of these, but not many. I've seen wood and onyx/marble. I've not seen one like this, though. It's a hard surface, and is meant to look kind of leather-like?
It looks totally of the period. It has the steel tabs on the bottom to hold the disks in, and the same kind of cork as I've seen on others.
It came with red and clear fountain pens. The last owner may well have used it as a fountain pen desk set rather than with the original Dipless pens.
Anyway, thought I'd share it and see if anyone has seen one before.