Back in the Late 20's or early 30's there was a company in Oakland, CA which manufacuted BlackBoards for Schools. The company is no longer in business.  I purchase one recently from a school and using a very expensive saw cut it into small pieces for home use. Dimentions(12"x 16"x 1")These are complete with orignal cut down wood frame as well.  You can still see the tacks holes from the old schools use.  A great price for a useful communication aid used in the kitchen, down stairs, or garden area any place where messages need to be left.  I had a winery owner purchase my first one he wanted his custom for an open sign for his wine tasting guess to know his tasting room was open for business.  Please see photos calculate your own shipping costs which may well be lower than above listed price,  shipping costs varies from place to place, then order yours.

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