Brand New Genuine Mistral US Fin Box for Competition SST, Diamond Head, Hookipa, Taloa Epoxy boards >1985 - 2 hole model, which can be convereted to the later 3 hole model in a few seconds by the owner if you have the 1986/7 models
UK Mistral park number was LA809969
Overall length 309mm, with 240mm long internal US box length.