Last one for a while - see plastic head version below.
Compare your key with that shown. Cross-sections show view of the lock the key goes in. Keys are sent as blanks and can be cut to fit your car at any local key shop for a small charge. Check to make sure your blank key fits into ignition before cutting. For - MG MGB and Midget 1978-1980 with original ignition lock in place (we have found that recent replacement locks use a key that we have yet to identify)
Check your key is the same before purchasing.
Cross referenced as:
Ilco #: X29 / VO73
Dominion #: NE24
Taylor #: X29
Code: 7001 - 9000