Lunar receiving laboratory stainless steel circular containment vessel, 6 x 4.25, used inside the lunar receiving laboratory to hold moon rocks upon their return to Earth. Two- piece vessel has a lid with handle and both are etched with serial number 252-279. Engraved on the bottom of the cannister is “Polar Stainless Steel, Made in USA, 1J 2-71.” RRAuction COA.