Here's an interesting postcard from 1916 which I noticed on eBay a while back. It was posted 17 years before the Nessie era began in 1933. The familiar backdrop of Urquhart Castle is there but what is that blob like thing in the water in front of the castle?
Is it our famous resident of Loch Ness on a jaunt or something more familiar? The castle is about 50 feet high which allows us to calculate the height of the object as about two feet out of the water and six feet wide.
Is it a rowing boat? Perhaps, but any presumed occupant of the boat is rather hard to see as are the expected oars.