Man uses Equipment, number 01

Man uses a liquid chromotograph machine in lab. Physical description: black-and-white negatives, 6X6.5mmLiquid Chromotograph; the larger machine with multiple controls on the left is a, Model 440 Absorbance detector. This larger machine encases the smaller pump (Waters Associates, Inc. M-6000A), there is a second and identical pump just to the right of the larger machine. Both machines that are described are manufactured by Waters Associates, Inc