I recently purchased a Per Lütken for Holmegaard Glass vase at a thrift store. The smoke-colored vase is about 7 3/4” tall and 7 3/4” across. It has an etched Holmegaard signature with a “PL” and a unilateral number 3187. I’ve searched hardernet.DK and could not identify it. I would love help identifying this design. Thank you.