Dacor Diving Lung Dial a Breath 1956 #7776

The Dacor Dial a breath was produced in 1955 and mine is the second generation. The originals didn’t have the dial a breath feature. Dacor R2 Double Hose Regulator was manufactured between 1956 and 1959, with Dial A Breath.
The U.S. company Dacor was founded in 1953 by Sam Davison under the name The Davison Corporation, or Dacor for short, to produce snorkels, regulators, and later also dive computers and navigation devices for the new recreational diving market.
It was one of five companies that started and became famous in the United States to manufacture diving equipment: