Many unfitted tank wagons built early in WW2 for nitric and sulphuric acid photographed in detail. Some survived to be used with TOPS numbers and these are illustrated after going out of use and stored at ROF Bishopton. Many different diagrams in the TR002 - 7 series were issued for these wagons. Surprisingly the nitric acid tanks retained their wartime liveries - with the warning stripes on the lower half of the barrel. Others, not on TOPs in collection