The Roman Map of Britain Tinea River Tyne, Northumberland

Tinea (the reading Tinoa is an error, a mark was placed in the o to convert to e) (R&C 258) next
Ihna Iena vars. Ikwa Icoa, Ikoh Icoe (Ptolemy II 3 2)

Ptolemy's river Iena, along with the Abravannus, were mistakenly added to the beginning of the section describing the western side of the coast of Britain. The error had a profound effect on the orientation of Scotland to the remainder of Britain - see Turning of Scotland.