Topps Rack Header Cards
 

This image is of a current eBay item I'm watching advertised as a 1973 Topps Rack Header Card.

I've looked online and I see that header cards from 1970, 71, 72 and 73 seem to be identical down to the indicia.

Is there any way to tell them apart? I need all of them, so I'll get it in any event. I'm thinking that unless I get them as part of unopened packs (which I won't be doing) there's no way to really know what year they're from.

I imagine the serial(?) number on the lower right might tell the tale. There are people on here that are real knowledgeable about those types of things.

I checked - the serial number is the same on this sample and on actual headers in unopened racks I saw online from 1970, 71, 72 and 73.

That's what I just checked as well. Like chips in a Pringles can, they are all the same, apparently.

1970 and 1971 Racks prior to 1971 series 4 I think had a large circle cutout not the small or cross hatch style. This style could be late 1971 thru 1973

1970 and 71 large circle example

Attachment 498250

I am not certain if this is entirely accurate but the print code in your pic is similar for the print codes off of Topps sheets and boxes. The print code on sheets, follow this pattern:

Print Run / Product Type (980-990's = Rack Packs) / Product Variation / Unknown Code # / Last digit of Year Printed ("0" as noted above for 1970)

The "last digit" code for all of the sheets I have in my collection ranging from when they started using print codes in the 1970's, has always equaled the last digit of the year printed. A last digit print code of "0" would be consistent with what you had stated as being first printed in 1970.

same
 

used to love Pringles..not so much now a days

any examples of these in slabs?