Topsun blue back stamp?

Cannot find any info about this stamp on my cards. Can anyone shed any light on it? Trying to post pic.

Are you referring to the blue backs missing the set number? Topsun cards don’t have a “stamp” as you say. More info is needed.
I’ve got about 30 of them.

@aminal They’re not from the Topsun printing. Looks like a kid was testing out his or her stamp toy. Either that or… sometimes parents mark toys so there won’t be bickering among the children over who owns which toy… A common problem :joy:


Thanks jkanly! Had so many of them i thought something was fishy. Glad to have it explained.

@aminal Any time. Glad to help :blush: