For what it's worth let me add this:
From the looks of the quality and apparent excellent condition of everything, I can only guess that there may also be some strong interest in acquiring certain pieces by a major museum in a nearby large city.
So that's another alternative.
They may wish to purchase it or if you decide to donate it your tax consultant can advise you on the possible positive tax deduction merits of such a move.
Yeah, I can't say I'm really to crazy about that idea. That would take one or more pieces out of public circulation and I don't always trust how well museums treat their inventory. For example, the Henry Ford museum has a large radio collection but many of the radios are missing their knobs. I have a book called "Radio and Television, RAI Museum Collection" which is written in both Italian and in English. All of the items illustrated in this book are from this Italian museum and the majority of the radios and radio related items have these non removable metallic inventory tags stuck on the cabinets and front panels, essentially ruining the original looks of each of the radios and speakers. Clocks and scientific instruments also experienced this same fate. I don't think, whoever it was that collected these fine pieces of radio history, ever intended for his collection, or parts of his collection, to wind up in some museum. I think he would have preferred to see his items recirculated back amongst the collecting community so that his friends, colleagues, and newer generations of collectors, would have the same chance to enjoy them as he once did.
By the way, who's collection is this anyway? Just curious.