Need operational data. Appeared as two stop boards co-mounted with two upward exztended clear boards. Operator apparntly had mechnism for rotating boards to ordered position. Use on St. John's-Lake Eustis line, Lake County FL. Two station photographs; Tavares and an unknown, same line. Do not have any references other than photos. Thanks to all comers.

-- Don Copeland (dodlebugcope@wmconnect.com), October 12, 2003