In original BC box.
Objective number 43 for 2.31 inches / 58.7mm
Eye No 11 for 1.55 inches / 39.4mm
According to BC the tolerances are -0.01 / + 0.025 (inches, I assume).
In used, but not abused condition. Objective one needs to be tight (ish) fit or can sometimes be a little too keen to open!