“My friends grandparents passed away and he took them but has no idea what they are.”
Mid-century nutcracker, possibly 1940s or 1950s. A sharp tool used to extract the edible part of a nut. They are used to clean the shells of nuts, especially chestnuts! My grandparents had a wooden bowl that looked like a hollowed-out tree trunk with holes to hold them and a slot for a nutcracker as well! ...