43ft range safety launch
Scale 1:24 and 1:4. A plan showing the scheme of hull fastenings for a Thornycroft 43ft range safety launch [former seaplane tender]. This plan relates to vessel numbers 1640, 1641, 1642, 1643, 1644 and 1645 [Thornycroft numbers 2906, 2907, 2908, 2909, 2910 and 2911]. The plan has been stamped 'R. D. M. C.; Ministry of Supply; 26-9-1958'.