This is an extraordinary puzzle by F.X. Schmid. The title in the box is The Battle of Saint Vincent, by Antonio de Brugada. However, the original title is Rescate del Santísima Trinidad por el Pelayo en Cabo San Vicente (Rescue of Santisima Trinidad by Pelayo in Cape Saint Vincent). The painting is at the Naval Museum in Madrid.
The puzzle is COMPLETE (2000 pieces). The pieces are in like new condition, and the box is in excellent condition.
It measures 92 x 65 cm, 36 1/2 x 25 3/4 in. The reference number is 98565.6.
There is another magnificent naval battle by Antonio de Brugada: the 4000 pieces version by Educa of The Battle of Lepanto.