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? [Text, letter Description automatically generated] Best regards, Rob Kotaska Reference Desk & Map Room Coordinator Olin Library