Benjamin (Ben) Diller produced Raku pottery on Maui for his Maui Pottery Company in the 1990s-2000s.  This Raku pottery coaster is undated, but signed "Ben Diller."  The coaster has the appearance of lava, and has a petroglyph of a fisherman on it.  The coaster is about 4 3/4" in diameter, and is about 1/4" thick. A previous owner has applied small felt pads on the bottom of the coaster. There are no chips, cracks, breaks, or scratches.  I am listing other Ben Diller items. Questions are welcomed. Combined shipping for multiple purchases is available. Returns are possible under regular conditions, including the buyer paying for return shipping.  I usually ship via USPS Priority Mail or the newer Ground Advantage, since these include insurance.  If you are making an offer, please give me at least 24 hours to respond.