Soundboard 

Resonance spruce wood

Active area of soundboard

1,019 square metre

Ribs (number, shape)

10, spherical

Soundboard construction

wedgewise tapered 9-7mm

Cast iron plate

wet sand casting

Surfacing of iron plate 

light gold metallic paint, diamond effect

Pin block

Multiplex beech plywood, density 800 – 850 kg m3

Inner rim material

9 laminas – beech, birch

Inner rim thickness

35mm

Wooden frame posts

3 longitudinal

Descent post material

spruce

Cut off bar (corner cross rib)

no

Outer rim-material

Sandwich, solid alder wood core, plywood coated, inner veneer Ebony Makassar

Bridge – treble

solid maple wood

Bridge- bass

solid maple wood

Bridge pins

Steel-ground tips 

Agraffes material – number

brass, 1-59

Duplexes-front

gis2 – c5

Duplexes-rear

d2-c5

Strings 

steel wire Röslau Germany, copper winding Degen Germany

Hitching of plain strings

double

Dampers – number

1-68

Action

standard RENNER – PETROF

Hammer heads

The highest quality hammerheads made in Germany, individually voiced

Keyboard

Tangential sawn spruce wood, individually balanced with lead

Black keys

Ebony wood

Pedals

left – Unacorda (Piano) pedal, middle –  Sostenuto (Prolongement) pedal, right – Sustein pedal

Legs and castors

standard legs, small unbraked castors

PETROF sign on right side wall

no

Felts colour

red+black

Hydraulic slow close fallboard mech.

yes