Dr Mike Baldwin : Organologist : Historian : Researcher : Writer: Harp maker : Restorer

Oiling the mould
Mixing the 'jam' with whiting.
Adding pressing board.
Pressing compo into mould.
Dividing the mould from the pressing board.
Revealing the casting.
Casting from a compo mould

I recently had the fortune of spending a morning with Michael Parfett, one of our best harp conservers and restorers.  Michael asked if he could use one of the Morley-Erard compo moulds to cast a pair of grotesques for an Erard Gothic harp.  Ordinarily I'd say no to such a request (I consider them to be a research collection) but it's not every day someone of Michael's caliber offers to demonstrate how to do this.  Michael proposed making three sets of castings, two for the harp and the third to enable a polyester mould to be made for future use.  

We used a later replacement mould, made for the Morley company during the 1890s, as the earlier Erard mould is missing one of its parts.  The results can be seen below.