You Have to See This...

I got an email today from a collector, wanting to tell me about his latest eBay purchase. Nothing out of the ordinary about that. Here's where it gets weird:



I'll let him explain it in his own words:

I don't know how I found this auction but it was an auction for a 1991 Topps Chipper Jones graded by Beckett grading... the interesting thing about this card is that on the back of the card is a 1990 Topps football player! It is authentic and was not tampered with but I have never seen anything like this... Take a look at the photos that I have provided and I would be interested in any input you could provide....

I have collected cards for over 20 years and I have never seen this. They must have accidentally put a 1990 Topps Football Sheet with the 1991 Topps Back Sheets... Most likely since football cards were produced later in a given production year and baseball cards were produced sometimes before the year even started there may have been an overlap. So the question is was an entire sheet produced of 136 1991 Topps Cards with 1990 Topps Football Backs?

Here's what I want to know: What did the guys and gals at Beckett Grading Services think when they saw this card? Also, does a wrong back or blank front/back hurt the grade of a given card? Any answers for us, BGS?