Thank you for submitting your item for appraisal. This appears to be an original Buzz Aldrin pocket patch which most likely made the way to the moon. I would consider all the other items attached as part of the provenance of this particular item. Those items who made the way to the moon are the most sought after, followed by other relics and photographs and autographs. Space memorabilia have seen a dip in prices in recent years, the special Buzz Aldrin auction was only in parts successful. This might change within the next five years when further interest is created by the planned new moon flights. The estimate is based on recent auction results. There is no measurement for the sentimental value you might attacht to the item.