You are looking at an antique Fisher Burette Holder. Marked Castaloy Pat'd June 1933 Made In U.S.A. 1617. Dog bone shape measures 10" x 5". The round beaker holder measures 4 3/4" inside diameter. Good shape, needs a major cleaning. Sold as is no return/warranty. Buyer pays .00 shipping / handling. Insurance extra. Great addition to your advertising, promo, promotional, diarama, display, lab, laboratory, science, scientific equipment collectible collection.