00640nam a22001697a 4500999001500000008004100015082002000056100002600076245003500102260002500137300001100162365000900173650002300182942000700205952012900212952012900341  c4378d4378200803b           ||||| |||| 00| 0 eng d00a620.0028bP2471  9540aParkinson, A. C.10aFirst year engineering drawing  aLondonbPitmamc1952  a250 p.  d5.10 0aMechanical Drawing  cBK  00112ddc406620_002800000000000_P247170912750aCLbCLd1955-12-08eA. H. Wheeler o620.0028 P2471p02198r2020-08-03yBK  00112ddc406620_002800000000000_P247170912751aCLbCLd1955-12-08eA. H. Wheeler o620.0028 P2471p02199r2020-08-03yBK