Square piano by Johannes Zumpe and Gabriel Buntebart, London...

Estimate

£4,000 - £6,000

Square piano by Johannes Zumpe and Gabriel Buntebart, London, 1773, the case of mahogany, the fascia boards and cheeks also of mahogany, the keyboard compass, GG to f3, with ivory naturals and ebony accidentals, single action with over-dampers, three brass-knobbed hand-levers controlling the damper-lift above and below b/c and buff stop, on later trestle stand, inscribed on a boxwood plaque Johann Zumpe et Buntebart Londini fecerunt Princes Street Hanover Square 1773, length 50.50", 128.3cm, width 18.75", 47.7cm

*Restored by Lucy Coad in 2007 and sold with her report on the restoration

**Ivory submission reference MXWU5ZF4

More Information

CONDITION REPORT November 2024

Lot 2506

ZUMPE SQUARE

Square piano by Johannes Zumpe and Gabriel Buntebart, London, 1773,

Details:

The case, fascia boards and cheeks of mahogany, the keyboard compass, GG to f3 with fused GG to GG sharp, with ivory naturals and ebony accidentals.

Single action with over-dampers, three brass-knobbed hand-levers controlling the damper-lift above and below b/c and buff stop, on a later trestle stand made in 2007.

Inscribed on a boxwood plaque ‘Johann Zumpe et Buntebart Londini fecerunt Princes Street Hanover Square 1773’.

Length 88.75", 225.5cm, width 18.75", 47.7cm

Restored by Lucy Coad and Calvin Talbot in 2007 and sold with her report on the restoration.

Condition:

The pitch is now a tone below modern concert pitch. The new strings fitted at restoration were calculated for a pitch of A415Hz.

Good playing condition with no structural problems evident.

Original soundboard repaired sensitively, and most original action parts survive, except a section of dampers reconstructed at restoration.

The new wrest plank fitted under the soundboard in 2007 and the re-gluing of main components have continued to support this instrument structurally.

New treble section to bridge.

Observations noted in the condition report are based on obvious signs to the naked eye from an experienced restorer. They are designed for quick analysis of their condition, leaving interested parties to carry out their own personal inspection. Please note that actions have not been removed from instruments.