Card identification help

I was gifted a box of various and sundry materials and in the box were some word cards. I am unsure what they accompany. All except one package is still sealed. Help?

They are about postcard size. I cannot seem to figure out how to insert or attach a photo. They have photos on the back. One with a cluster of grapes, one with a rabbit, one with a man and an anchor, farm scene, a ship. Any ideas?