TC is Tigris Corps. The British Library has a significant collection of TC maps but these are not on-line. I suggest you address your enquiry to the BL ([log in to unmask]) Jim Caruth On Thu, 4 Feb 2021 at 20:52, Robert F. Kotaska <[log in to unmask]> wrote: > Greetings from Ithaca, NY. > > > > Hoping someone can provide some guidance. I received this question from a > graduate student: > > > > I have a list of locations, some of which are given by name, others using > what I *think* are corner coordinates or some other military mapping > system. Do you by chance know how I I can decipher (and in turn find) > locations in British mandate Iraq given with a T.C. prefix, as seen below > in one of the lists? > > > > > > [image: Text, letter Description automatically generated] > > > > > > Best regards, > > > > Rob Kotaska > > Reference Desk & Map Room Coordinator > > Olin Library >