Note that although Beit Dagan is a local council (which is a higher municipal status than a regional council) as early as 1953, the manhole cover includes a regional council title, probably a mistake by the manufacturer or the consumer of the manhole cover.
Translation of the text on the cover: Regional C. Beit Dagan Drainage The emblem of the Beit Dagan local council Yetzikat Hamifratz 2002 Standard mark of the Standards Institute of Israel 600 25T