E.M. Schwenke, New Richland optician envelope. Material: paper. Size: 3 1/4" x 5 1/2". Description: yellowed envelope; eye graphic in center; black print: "He sees best who sees to the consequences, do you realize the serious consequences of continued eye strain? We fit your eyes correctly. E.M. Schwenke, optician, New Richland, Minn."