Just won this "Korona Commercial" 8x10 on Ebay but cannot find much info on it. The rear standard is on a sliding track ( not rack and pinion which there is on the bed that extends further back). Looking for more info on it. But also a section of track you may see is missing just behind the front standard and wondering where to find such a part - unless it's something I need to have made. Also the rear standard on sliding track seems to be a pull by hand configuration and does so with difficulty as the rear standard hardware that is in the track seems a bit loose. Any advice welcome :-)Click image for larger version. 

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