My My Gra30 .. hold your horses
Never said it must be free or that it cost nothing, every work cost something, sometime, at least, time and good will .
About the Labayen sheet; it was in every kit sold
the drawing were made by Mr Labayen himself, then duplicated by the means available at that time ... photocopy, rototprint or ... no Art Box, no photo.. plain plastic bag wih the figures and the data sheets and he had a full job outside the figures bzns
Art Box .. we don't ask for the part
Art, just infos . Cost.? .. their own cam, click clack thank you Kodak, posted on their webb would be enough . No need of a special black room with mutiple asserved flashes, protected in a faraday cage agains external noise, cam on a 5 tons socle against vibrations, made on a professional system, negative 10 x 15 inches on glass .
For lot of suppliers sometime it was only a small band of paper, handcuted with scissors and plain text with sometime a freehand drawing for the position of awkward pieces, and it was enough . For more we had ( have ) Funcken, Blandford, Osprey, Allmark to name a few, remember 70ies .. no webb
And I forgot .. the shops were you got lot of info from the owners or other customers present ( this possibility is allas out .. )
And .. even without your Art Boxes ( that are very wll made/accurate ) , I would buy CGS products for their quality and reasonable price
And I think that my target was surely that (those) other manufacturer(s) who offer nothing except bubbles ( not even Champagne .. pity )