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inside measures 34.81mm (1.37 inch) from threading to threading. 69.87mm (2.75 inch) from left to right.
If it's 34.8 inside the threads and 70mm wide, there's a good chance that what you have is an Italian frame. Check before ordering! All of the above external cup BBs are available with Italian thread 36mm×24tpi right hand thread on both sides for 70mm shell width as well as British 1.37"×24tpi right hand thread on non drive side and left hand thread on drive side for 68mm shell width.
inside measures 34.81mm (1.37 inch) from threading to threading. 69.87mm (2.75 inch) from left to right.