Sea Form (Atlantic) (BH 362) is a 1964 bronze sculpture by English artist
Barbara Hepworth. It measures 204 cm × 107 cm × 73 cm (80 in × 42 in × 29 in).
The sculpture comprises a single large curved free-standing form, similar to a shield, with contrasting rough and smooth surfaces with brown or green patination, and five pierced apertures that resemble holes in a sea shell. Like Hepworth's Single Form (1961), it was based on
Neolithicstanding stones at
Chûn Castlehillfort site in West Cornwall. It was part of a series of sculptures that took inspiration from the cliffs and caves on the coastline near
Porthcurno on the
Penwith peninsula. Other works in the series include Curved Form (Bryher) (1961), Oval Form (Trezion) (1961–63) and Rock Form (Porthcurno) (1964).
It was cast at the
Morris Singer foundry in London in 1964, in an edition of 6+1 (six for sale, and one
artist's copy). A cast was exhibited at the
Battersea Park sculpture exhibition in 1966.
Three of the casts are now on display in public collections, and three held by private collectors.
Cast 1/6 was bought through
Gimpel Fils by
James H. Clark and his wife Lillian Clark, and donated to the
Dallas Museum of Art and Museum of Fine Arts, Dallas, where it had been held since 1965.
Cast 6/6 was sold through
Gimpel Fils in 1966 to Mr & Mrs
Samuel G. Rautbord of Chicago; it was sold at Christie's in 1998, exhibited at
Chatsworth House in 2015, and sold for £3.5m at Christie's in 2016.