Pumaducks show up every now and then. I've got a near mint example in my cabinet, and there's at least one other member on SRP with one in similar condition. Often times these have scales that are a bit on the short side. Since dubl ducks usually have blades a bit on the long side and Pumas usually have normal length blades (and scales) this is not unexpected.
As DD didn't manufacture anything someone else made their razors. In most cases we don't know who however there are some examples where we do. The Puma Ducks are one and there are some French Ducks and some Dovo's too.