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It is around 11cm length wise
... a close-up of the underside would be useful: many Limes have hairs along the veins and/or in the vein axils, and the colour of these hairs can help in determining an ID.
If you only have a cameraphone to take pics, but can get access to a hand lens (very useful for botany) then you can get really good close-ups which help with IDs - see the link below my signature.
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 51.5266, -3.4905
OS grid ref: SS966819