Original zinc printing plate
Original zinc plate
Collection of 20 different duplicate plates and moulds, all of the same subject - an advertisement for "Ambre Solaire" - plus specimens of moulding material. All except (7),( 19) and (20) were made by Herbert Smart at the London College of Printing, 1967-71
Original zinc plate
Thermoplastic mould for electrotyping
Electrotype produced from 1989-689 pt2
Stereotype matrix ("no-pack" backing)
Stereotype cast from 1989-689 pt.4
Stereotype cast from 1989-689 pt.4 and nickel-faced
Chromium-faced "Blackmore" plate by Nickeloid Ltd (in this process, developed by Nickeloid in the early 1960's, the lead backing is deposited electrolytically into the copper shell before bonding to an aluminium base)
"Tenaplate" mould for electrotyping (material, wax on foil, made in USA)
"College" electrotype (nickel shell filled with epoxy resin process developed at LCP in the early 1960's by William Fry)
Thermosetting (Bakelite) matrix for rubber and plastic platemaking
Plastorex plate moulded from 1989-689 pt.10
Rubber-backed plastic plate similar to the "Cambridge" plate, made from 1989-689 pt.10
Thermoplastic plate made from 1989-689 pt.10 using granules
Rubber plate made from 1989-689 pt.10
"Balacrit" thermoplastic plate made from 1989-689 pt.10
Plate with thermoplastic face and rubber backing made from 1989-689 pt.10
Thermoplastic plate made from 1989-689 pt.10
Two specimens of unused stereo moulding flong, Batchelor HS .035"
Specimen of unused stereo moulding flong, probably of American origin