This drawing is inscribed by the artist in ink, 'Pt Berteaume' and 'Pt St Matthieu'. The taking of coastal profiles, either as line or tinted drawings, was one of the skills that navigators learnt and were taught. Both so they could recognize landfalls and as part of the production of charts and other aids to pilotage that included them. In Pocock's case, however, this coastal profile was almost certainly an aid to authenticity in his painting. Whether he took it himself, and on what occasion, or whether he copied it from elsewhere is not known. It may have been made in connection with his painting of Sir Harry Neale's capture of the French 'Resistance' and 'Constance' of Brest in 1797 (BHC0495) – or some similar work – since it appears to be taken from between the coast, which connects the two points shown and the off-lying Parquet Rock (La Parquette) to the south, near which the action took place. Looking north-east, towards the harbour of Brest, a viewer at that position would be able to see the profile of the Pointe de Berteaume without the coast of Berteaume Bay behind. While the coast to the north-west beyond the Pointe de St Matthieu would be clearly visible.