Question about lens icon on DPP thumbnail

Does anyone know what the lens icon in the upper right corner of the DPP thumbnail (the LARGE t/n) means? I notice that it only appears on RAW files, not on converted JPEGs. The icon looks like a 70-200L or thereabouts. I did RTFM but to no avail... Thanks!

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Canon: 6D, 50D, [17-40mm f/4L],[28mm f/2.8],[24-105mm f/4L],[35mm f/2.0],[50mm f/1.8 II],[70-200mm f/4L],[80-200mm f/2.8L MDP],[85mm f/1.8],[100mm f2.8 Macro],[100-400 f/4.5-5.6L]

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Canon: 6D, 50D, [17-40mm f/4L],[28mm f/2.8],[24-105mm f/4L],[35mm f/2.0],[50mm f/1.8 II],[70-200mm f/4L],[80-200mm f/2.8L MDP],[85mm f/1.8],[100mm f2.8 Macro],[100-400 f/4.5-5.6L]