I recently acquired an old target scope of unknown make and power. There are no markings of any kind, which leave me to believe it is custom built. From its characteristics, it could have been made by F.H. Souther, in the 1930's. Here are the measurements: OAL 29 1/2", Tube 3/4", Objective 1 1/2", Power about 14x. If anyone has seen or used one of these, I would like to know to confirm. Thanks!