printed in silver on paper label (in image) l.r.: HASSELBLAD printed on paper label on support reverse u.l.: 52 / a drill-test being made. To the left, one of the instruments / which will automatically measure radiation and particles / from the sun. / Hasselblad 500EL Data Camera with the Reseau plate. / Zeiss Biogon 5.6/60mm. (text repeated in German / French / Swedish) / COURTESY OF NASA.