According to the Bennington Potteries website, the number on the bottom (1959) is a "product style designation" and not a date. The initials dg stand for David Gil (1922-2002) and the small sunburst represents "the inspirational 'spark'."
Thank you to https://www.benningtonpotters.com/product/708 for the valuable information.
This platter is glazed in the color Blue Agate and measures 12". The piece is solid and has a heft at 47.5 ounces. There are no chips, cracks or crazing.
The numbering system began in the 1960s so this piece is post 1960s. I am not sure when Gil ceased to create pottery in the studio.
Thank you for looking.
Just contact me within: 3 days of delivery
Ship items back to me within: 7 days of delivery
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Jan 29, 2021
Thank you so much for your prompt shipment and careful packaging! The platter is beautiful!