NASA Battery Substitute Assembly, 19 x 9 x 7.5, with its George C. Marshall Space Flight Center metal label stating “Battery Substitute…Serial No. L0002, Mfd. By GET,” with a second label stating “Spare,” and a third label listing a modification. Two sides also bear large warning labels with red print that reads: “Warning: Prior to installation in fueled vehicle, pressure, depressurization and leak test to meet specifications 40M71358.” Assembly comes in its original wooden storage crate with a detached NASA Critical Space Item label. In fine condition.
