Looks like Post cards with stamps
Lots of options for use:
Mail Match up, Counting dots on Post Cards & Match to Numbered stamps.
Extra number one and four, simple line number included for young learner that have trouble with fancy text numbers.
Print on paper and use as cut and paste
or Print on cards stock and laminate - use velcor dot for stamps or sticky tack, creates a re-usable resource.
Print on iron on sheets, and make a felt board active, with white felt
* This would be a great item for any Mail Room & Post office Dramatic Play
You will get: 1 zip file with-
5 PDF images
Post cards and stamps