[CAUT] Steinway extra-bore-length

[Jon Page]

Here's something posted long, long ago by Newton Hunt:


 From the book, "Steinway Regulation"  by F. R. Dietz:

                                                     Model S-B         C-D

Point of hammer center                 4.6 cm          4.9 cm
from bottom of string
Point of rep center                       11.0 cm        11.3 cm

blow                                              47 mm         47 mm

dip                                                9.5 mm        10 mm

underside of keytop                      63 mm         65 mm
from keybed

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