Pastificio Caponi is an artisanal pasta laboratory in Tuscany which produces egg pasta as you grandparents did. Per each kg of pasta 24 egg yolks coming from selected breeding farms are used , and the laboratory produces only 200kg of pasta per day because it follows a productive process as similar as possible to the home-made one. Here's a video of the whole production https://www.youtube.com/watch?v=kdN1ZmRiJHs