Added June 16 2010 by Jan Werner:
I hope you don't mind me taking the liberty to add two pictures (scans) of this drawing's original (of which I am the happy owner). More than a photocopy they show the true value and information of the factory drawings. There is considerably more tone on the original's scan. The detail far below (400 dpi true size) shows the fabric, corrections and related details of the design drawing process: