This unusual card is a welcome card sent to recent visitors to the church that sent the cards. They had no description on the back , and were sent to the visiting worshipper by one of the church staff.
As noted there is no description on the back, only the caption on the front:
We are glad you visited us and hope you will come AGAIN!
Come near before the Lord.
–The exact church that sent the card originally is unknown, however, it was mailed from Arnold’s Park, Iowa, and is dated 17 September 1963.