Lionel Packets for No. 154, No. 450, and No. 153C -- factory stapled

Offered for sale are original Lionel packets for the No. 154 Automatic Highway Signal, No. 450 Operating Signal Bridge, and the No. 153C contactor. They appear to be factory sealed (stapled) so I have not opened them to verify the contents, but a small tear on the side of the No. 154 packet shows that the contents of at least that one are intact. In addition, someone has written "signal bridge" in pencil on the No. 450 packet (see photograph).