This very colorful small cabinet is a classic style for this mine, from the 1960s era, in all likelihood. John Ydren was active in this time and had a large suite of such specimens, of different habits and styles. This is what I call the "fat caramel" style of Los Lamentos wulfenite, with fat equant crystals of a solid unvarying color in orangey-caramel hue. Ex. John Ydren Collection.