Greetings fellow AudioKarma members. I am looking to locate the original plans for the world famous JBL Metregon Speaker System that JBL sold back in the 1950s and 1960s. I have been able to locate many nice photos of the system however I need some specs on the cabinetry (specific sizes of pieces of the unit) so that I can create an accurate reproduction of the Speaker enclosure, with all of its individual parts. I plan to manufacture several of these in Solid Walnut and Walnut veneers. I have the basic dimensions of the entire structure however I would love to locate the original drawings from 1958 so that I can know the radius of the front panel as well as the size of each part of the cabinetry. I can play around with the photos I have to extrapolate the sizes of the individual parts through measurements on the photos however it would be much easier simply to find the drawings of the unit so that I can begin construction. As I plan to make 3 or 4 of these, I would prefer to have the original architectural drawings for the case construction. Any help, even the smallest bit of information would be greatly appreciated. Thanks in advance for any direction you can point me.