Well, I don't know if this helps, but I'll throw it out for something to think about. I was sent to look for some documents from the late 1940's on some equipment. What I found was two sets of documents, one dated 1945 and the other dated 1949. The document from 1949 had more information on it than did the 1945 document. So, in an attempt to determine which document was the accurate document I compared the drawings to the actual device that was drawn. Interestingly, the device was closest to the 1945 drawings.Originally posted by C4K:
If that is indeed the case, why was there no serious attempt to compile those MSS for translation until the 19th century?
In an attempt to try to find out why the other document had added material I went back to the location and continued to dig through drawings. Sure enough I found an engineering file from the original engineer. The 1945 official drawing was stuck in his notes (obviously copied from an old style copier--blue-line, heat or something) along with a bunch of notes in his handwriting clipped to the side. After reviewing his documents it became obvious that he was not trying to add to the original document, but to write notes so he could better understand the complex drawings. After he was gone, someone found his notes and decided to update the 1945 original drawings (which contained everything necessary to build the item without question) and updated them with the new notes.
The point here is the question of which drawing should be considered the original and accurate (since there were no engineering change orders to the device). It was decided by our documention that the original drawings were the best and closest to accurate since they contained the minimum required to build the device; although it was also noted that there was absolutely nothing wrong with the later drawings, they just went further in describing why the device was built the way it was, even though that is not a requirement of the drafting team.
Bottom line, both sets of drawings were original and both sets were accurate. There were no changes between the two sets of drawings, although there was some repetitious writing.
If we were to only have one drawing, either would suffice 100% accurately for the purpose of drawings and that was to build the device.
Just some food for thought based on a real world example that allowed us to actually track the origins of both documents.