Posted By:
petecldThanks for the scans. Interesting and I think I have an answer.
If you look at the yellow background of the normal card you see very small "areas" of white in between the yellow. In the odd card those white areas appear pink as does the entire image. This says to me the pink is flat across the entire area and I think the pink covered the entire area the paper stock.
I think your card is printed on a "counter" or a spacer. When a printer gets a huge print job and receives a large supply of stock, say 50,000+ sheets, they don't count each sheet. The stock will have counters every 1000, 2500, or 5000 sheets to show the quantity. (These are hypothetical numbers). These are pulled from the supply as the the sheets are used on press. When the pressmen needs to account for the days work he doesn't count each sheet he has completed, he just counts the pulled "counters" and estimates how many were printed.
When I was working in the shop I saw two different kind of counters: a sheet that was larger then the rest and was folded down the side and maked 1,000, 2,000, etc. and a sheet of stock that was the same size as the rest but was colored and could be seen when looking at the "sides" of the pile of paper stock. I recall seeing pink , light green, grey and lt. blue. This isn't to say these are standards, it could be any color.
I think you card is printed on one of these sheets that should have been pulled.