I just acquired a Victoria 18 1981. The bottom part of the rudder has come loose. Not sure what part is missing. Can you tell from your boat how the rudder is attached to the bottom gudgeon? I don't know how it connects. Just know that it isn't connected. Not sure if something is broken off or if the pintle is a separate piece and has come loose or if the pintle is threaded and screws up in the rod that runs along the leading edge of the rudder. The one picture shows where I have put a screwdriver and taped it to the keel so the rudder stays on top of the bottom gudgeion.
Thanks