Britains ‘Unbreakable’ Plastic Farm Series – No. 804 Cow standing and No. 812 Calf lying – Both models are moulded in smooth, creamy plastic (polythene) – these are Pre-Herald merger models dating to 1957 or 1958 (originating from Britains lead moulds) – it is unusual to find a matching pair of Ayrshire breed smooth plastic cow and calf and these would grace any collection.