Birch v Cropper (1889) 14 App Cas 525 is a UK company law case concerning shares. It illustrates the principle of exhaustion, that the rights attached to a share in an article would be presumed exhaustive, although one should construe the nature of a share with a starting presumption of equality. The principle is now subject to the advice given by Lord Hoffmann in AG of Belize v Belize Telecom Ltd and ICS Ltd v West Bromwich BS.