Stamped on shank is Made in England...cake ID is round and uniform but tapered starting (top) at .770 inches to .600 inches...OD at the top is 1.335 x 1.325 inches (slightly out of round)...length is 5 3/8 inches...height is 1 3/4 inches...depth is 1 1/2 inches...weight is .8815 ounces (25 grams)...mortise draw-hole is a number 26 drill bit (slightly smaller than 5/32 of an inch)...tenon draw-hole is straight thru to the button at 3/32 of an inch...tight fitting, original, no issues st...em with the Barling cross visible...an obscure registration number on the bottom of the bit...this pipe is believed to be late 40's-early 50's (pre-Transition)...no ghosting...carefully reamed, cleaned and sanitized...please message questions and thanks for your interest.