The jaw is from a deer, probably Odocoileus hemionus (Black tailed deer) and the other bone, which is an artiodactyl humerus, is also from a young deer (the epiphysis or unfused cap of the humeral head is missing from the proximal end). The other item looks is part of an endocranial cast from a Tyrannosaurus rex
The first jaw measures approx. 7" long, the second measures approx. 6.5" and the T-Rex cast measures approx. 8"
The Frame Measures Approx. 13" x 13" x 2"
Ground S/H is $20.95 within the US