I sailed in the Tweedbank/GBYC in the fifties, she was built in 1930, typical Bankline trip Cuba/New Orleans/Texas ports/Mexico/Australia/New Guinea/Colombo/Uk. We took a Tissue paper Chart of Kavieng in New Ireland on board in Sydney as none of the Admiralty charts were up to date and can remember margins in the border with such comments as" after passing shed with red roof steer 274 degrees " somebody had scored out "red" with comment shed now painted green, and comments like "dont anchor here or you will have a Japanese Zero on the end of the anchor !! I ended up in the Islands Radio Station working point to point with RabaulRadio as the Islands R/O had done a "wander" into the jungle!!