Nice Estate find.Here we have a Antique/Vintage Rare Otto Mangst & Co München Schillerstr Camera?.Has wear and tear.Not sure how to open and did not want to force.Can not find anything online about it so any information is appreciated.Sold as display as parts not working.Not a expert.Pictures show best description.Will pack well and insure.Email any questions sold as-is as seen and stated no returns for any reason