In a way, "Countertop Advertising Display" is a misnomer for this tiny piece, which measures about 1 3/8" square.  With a tab on the bottom that inserts into a 1/2" diameter wooden, slotted base, the piece was likely designed as a sort of price tag or promotional piece designed to rest on top of a Boston Garter box, countertop cabinet, or countertop.  Sturdy and colorful, the number "2" has been written on both sides in what appears to be grease pencil or possibly fiber tip pen.