As far as I can tell, that Sfusato Amalfitano is not the "limone pane" that is referenced in the cedro salad post... That huge limone pane seems to be Limone di Procida. The Sfusato Amalfitano is what replaced it commercially, I believe, and it's a "femminello", which I assume means smaller in a male chauvinistic world (unless it refers to a smoother skin)... The search continues...
https://vivaifrappetta.it/prodotto/limone-di-procida/
Edit:
I think this shows how confusing the naming is. Here's Amalfi Bread Lemon: https://www.oscartintori.it/en/prodotto/amalfi-bread-lemon/ and here's Amalfi Lemon (a much more std lemon): https://www.oscartintori.it/en/prodotto/amalfi-lemon/. Plus for good measure a Femminello Amalfi Lemon (seedless): https://www.oscartintori.it/en/prodotto/adamo-femminello-lemon-seedless-vcr-103/. I still can't tell from that description whether the Amalfi Bread Lemon is really the huge fruit... The description of the Roman Citron https://www.oscartintori.it/en/prodotto/roman-citron/ seems much closer to what the recipes mention.
Ok, next search is for "howto smuggle lemons into CA"
The problem with the whole matter is that
limone pane is somewhat a folk's name, that means, it doesn't really ties strongly to a variety (or to be more precise, to a single clone) like for istance "cara cara orange". It's more akin to the word "plantain" where you use a word to specify the use of the fruits more than the specie of the plant, and this works pretty well in a farmer's society because things get their value by their immediate use...
(On a unrelated note "Femminello" means "little female" and refers to the many child (lemons) this varieties make)
In the cedro salad post, i think the "Limone cedrato gigante" has been used by the author of the post. You can find it in tintori page. "Limone cedrato" is another category of citrus (like grapefruits, for istance) wich is pretty old (centuries), and not so much widespread anymore, but you can find them here in some collections and some people assure me that they are the best for salads. They are "citron flavoured" lemons (this is the meaning of "limone cedrato" if that makes sense) the word "cedrato" refers to citron but remains ambiguous in what such referece is.
Anyway, there are several varieties of such citrons good for salads. Among the best, you have the "Limone cedrato spadafora", the "Limone piretto" and the "Limone ponzino amalfitano". Each of those will be good in salads.
During the winter- early spring one can buy here these big bumpy lemons from Amalfi region, exceptionally good, moderately soar with sweet albedo.
I got similar lemons from a plant my grandfather left me but i didn't get any name for it from him:
They grow nicely but not as good as the onle in souther italy i guess because i lack of heath. The fruit of mine don't look very similar to the lemon i find at the store from amalfi coast, but then again, i don't even know what those are.