Mehlin Grand

[Newton Hunt]

It is doubtful that you will find spoecific measurements for this piano
unless someone has a technical bulletin on the subject so;

        Measure key height at several places along the key board,
        Look at how the keys relate to the fall board, key slip and key blocks.
        Derive a key height that does not permit the sharps to hit the fall
board when they are 12mm above an optimal white key height so that the white
key is not touched by the name board felt on the fall board and so that you
cannot see the bottom edge of the white keys and so that the height of the
white keys appear normally related to the key slip, blocks and fall board.
        Key height is not a critical measurement on older pianos like this one.
        Key height must be so that the key top will be no less than 1/8"
above the key skip when the key is depressed at normal dip.

These details will establish the proper key height for any piano within
1/16" or less of proper height.

                Newton
                nhunt@jagat.com