Parts such as the Oil Tank (a100-4,k,l,m): Lens,oil Level Inspection, Cushion, Washer, Tank, Oil are included in the A100-4 1978 (c) General Export (e01) Oil Tank (a100-4,k,l,m) parts fiche.
The Oil Tank (a100-4,k,l,m) assembly is constructed from several parts from which the Lens,oil Level Inspection is the most expensive.