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This radio source, 4C 05.51, has extremely unusual structure a smooth low-surface brightness ring accompanied by two nearly diametrically opposed-compact sources, both offset to the southwest; The optical and radio spectral properties appear inconsistent with a Supernova Remnant or an HII Region, astronomical systems that sometimes display ring-like structure. The structure strongly suggests that it is due to gravitational lensing, by a foreground massive object of light from a Quasar or Radio Galaxy. If this is the case, then this object represents an "Einstein Ring", a particularly symmetric case of gravitational lensing first proposed by Einstein in 1936, in which the source is imaged into a ring. Further observations are being carried out to test the lens hypothesis.