I have been asked if I can produce a key to lock the keyboard cover lock on a piano. All that I know, at this stage, is that it is a pin blank that is needed.

From my ailing memory I seem to remember that these are actually more a key operated latch than an actual lock. Effectively anything you can fit in and twist will open it as there are no levers.

Does anybody happen to know what size blank I need? Ideally I would like to get a blank with an ornamental bow, possibly in brass. Again does anybody know who would supply just a 1 off blank?