The knife Geoff gives Bill is a Buck 110, a rather common "first knife" due to its simplicity and durability. Since this model of knife was manufactured first in 1961, it's not unlikely the knife was passed down as well, similar to the restaurant.
Chef Jeff says the Mystery Crates are sometimes uni or yellowtail cheeks. Uni is the reproductive organs of the spiney sea urchin, and yellowtail cheeks are the jaw muscles of that fish. Both are classic Japanese delicacies and fashionable novelties in 'fusion' cuisine.
People react poorly to Chef Jeff's squab (young pigeon) because, these days, it is an unusual food. 150 years ago squab/pigeon was a sizeable part of the European and North American diet, much more important than turkey.