What a charming charm!
A naughty monkey climbs on a parrot (I don’t know how else to describe the composition lol.
They are pinned in the centre of a long gold oval around which they rotate.
Calling it spinning is pushing it a bit lol. 
They are finely modelled in 15 carat gold, 
 
English circa 1880
15 carat gold
weight - 2.9g
measures - 25mm long incl bale (but not jump ring)