In 1983, mobile as a noun meant a type of sculpture (Wikipedia)
The OED gives mobile n 4 as coming from French usage of 1931.
- a. A sculpture consisting of hanging or pivoting pieces of metal, plastic, etc., in abstract or (more recently) representational shapes, connected by wires and threads so as to be able to move and rotate in response to air currents or when propelled by an internal mechanism. Now chiefly historical.
The quotations in the OED are interesting:
1932 Art News "Mr. Calder..calls his newest phase, ‘Mobiles’. This brand new art form, signifying abstract sculptures which move..were [sic] first shown in Paris in February."
1949 Archit. Rev. "Alexander Calder's work on the ‘stabile’ is not as well known in England as is his work on the now well established ‘mobile’. In fact Calder has always done ‘still’ sculpture, and the term stabile, given to it by Hans Arp, appears to be some months older than the name mobile, which was invented by Marcel Duchamp."
Here's one of the Calder's sculptures:
Alexander Calder, Red Mobile, 1956, Painted sheet metal and metal rods, a signature work by Calder, from Wikipedia.