From West Midlands Police:
Police are investigating a robbery that happened on West Heath Road at the junction of Station Road, Northfield at around 10:50am yesterday morning (27 November).
A 54-year-old man was threatened with a knife by two offenders who snatched a chain from around his neck and forced him to remove his wedding ring.
They ran off along Station Road in the direction of Northfield train station.
Witnesses or anyone who may be able to assist the investigation should contact CID at Birmingham South on 101 or the independent charity Crimestoppers anonymously on 0800 555 111.
Police are currently looking through CCTV images and hope to issue a description when completed.