Yes Bruce, I fully understand what you posted.
Though I think much of what you reason with is in the eye of the beholder.
As an NP historian, the 48000 and 49000 of NP cars are in fact, fairly well documented in photos.
And changes in 1969 - are as others have wrote here prior, have - yet to happen - as far as this list is concerned.
And as Hudson points out - there is no photo link.
And all the included text is long into the future from this lists POV.
Of "unusual cars built after 1960 but similar to earlier types for which little or no photos exist", see post # 58 from the final word on all, Mike Brock.
From post # 58, if a reason can be tendered why the original post affects cars - in the 1960 era and prior, it is indeed open to discussion.
This is not the first time that postings that belong on the BBFCL have crept in here and no doubt will not be the last.
James Dick - Roseville, MN