This antique telephone from Kellogg is a rare find for collectors. The hand-cranked wall-mount phone was manufactured in the United States before 1940, making it a piece of history. The brand is well-known and adds to the value of this antique telephone. The phone is in good working condition and would make a great addition to any collection. Valued at around $6500 to $7000. Only asking $3000 OBO.