General Forum

I just bought some of these stamps on ebay. In the Beckett they say that they were distributed in several grocery stores; some with the grocery logo on the back, some with a blank back. On those I've bought, some have the Loblaw logo, and some others have a blank back (only with the mention "Fold before seperating". Anybody know if they came from two different parallel sets, or if only some have the Loblaw logo (as they were sell in strips of 8 stamps, maybe only one had the logo) ?

Thank you!