Speaking of Steinway grand sizes

[Richard Brekne]

Hi Folks

Ran into a Steinway Miniature today... serial number 140604... which 
puts it from 1910.  Thing measures 159 mm from backside of tail to front 
side of the lockbar (stretcher I think many of you call it). This doesnt 
quite match the M specs of today.  It doesnt have any designation next 
to the serial number which is stamped into the usual place in the V in 
the plate webbing between the bass and tenor areas.

Is this an M of a different size as it were ?  I need to order a set of 
bass strings for the thing... someone put on a set of hex core strings 
in 1987 as the story goes... using the same core dimensions all the way 
down to note 14.  Struck me as a bit strange... tho I haven't plugged 
the numbers into my spreadsheet yet.

Anyone have core and cover specs for the scale on this thing handy ??

Cheers
RicB