I have a small silver knife that my father is said to have got from his grandfather. My father would have been 90 at this point in time. The knife says St. Augustine , FL on it and has pictures of possibly the fort there and a face on other side with a lighthouse and palm tree and inside on the base of the blade which is a push-button blade it says Walden. On outside of knife it says sterling. Anyone got any ideas of this knife’s value or just a trinket???