Mae'r cwcis hyn yn gwbl angenrheidiol ar gyfer weithrediad y wefan.
Rydym yn defnyddio Google Analytics i fesur sut ydych yn defnyddio'r wefan er mwyn i ni ei wella yn seiliedig ar angen defnyddwyr.
Gall y cwcis hyn gael eu gosod gan wefannau trydydd parti a gwneud pethau fel mesur sut rydych yn gwylio fideos YouTube.
Amgueddfa Cymru
3/4 Port Bow view of SUBMARINE H43 entering Cardiff c..1937.
HMS H43 was a British H class submarine built by Armstrong Whitworth, Newcastle Upon Tyne. She was laid down on 4 October 1917 and was commissioned on 25 November 1919. It had a complement of twenty-two crew members. HMS H43 was one of the seven H class submarines to survive to the end of World War II . HMS H43 was sold in November 1944 and was scrapped in Troon in 1945. (wikipedia)