Note attached, "Possibly a thermogradient cabinet for seed germination (possibly Joan Mullet) see John Delpratt," and by Peter May, "I'm not certain on either count. A friend of mine worked at seed testing in the early 70's and knew Joan M. Would you mind if I sent the photo to him to have look at?"Woman working in seed testing, Unable to definately identify.seed testing, thermogradient cabinet, seed germination, joan mullet, plant research laboratory/institute