At the time of this photo the aircraft was designated a TC-135B with the 24RS. By July 1 of that year it was assigned to the 45RS and the following year was lumped into the WC-135W MDS category with the rest of the former WC-135B aicraft. This according to the excellent Robert S Hopkins III book "The Boeing KC-135 Stratotanker-- More than a Tanker". It was a surprise to catch this aircraft as it showed up on a change-over Saturday for Red Flag at Nellis AFB.