@saab,
I had a friend I hope is still alive, but may not be, whose husband was an aircraft engineer (don't trust me, something like that) and an artist, and she was a city librarian and cooking teacher. She's the friend I've mentioned who had the front door enter the kitchen, because of her sideline of cooking classes. He was well able in design and construction too. I have seven of her books, and still use them sometimes, especially my favorite chocolate cake recipe. I've talked about them before at a2k.
Besides giving her name if her books are available anywhere or not, I'll say I remember them finally going on a tour, which I remember taking as not usual, but I only knew her for a clump of years. Together they were very inventive about matters like hanging clothes and how to have a grape arbor.
Ah, there it is in the Venice book. Chocolate and Walnut Cake, aka Torta di Noci e Cioccolato.
I've some research to do.