Installing large Hopkin's Large Victorian cornice around cupboards

Installing a large Vctorian cornice areound a cupboard which had been recently installed.
The cornice maybe was one of Hopkin's Plaster original moulds and cuts at about 330 mm.
Peeled the paper back on the plasterboard so the cornice cement would adhere well and not let go.
Put some screws in as well to hold it up there as well.
Used CSR Cornice Cement.
By Hawthorn Plaster Repairs Specialist.
www.hprs.net