dscc5457.jpg

Detail of the middle portion of the Explorer/Beacon backup unit.

Picture 2 of 2.

The silver hemisphere at center is presumably contains the high-pressure gas to inflate the balloon. The yellow writing on the sphere is only partially visible, as it starts above and extends around the curve of the sphere, but the visible portion reads

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with Nitrogen, Max. [unreadable]
102 cu. in.: Temp. Range -12[unreadable]
[obscured]aly Tested to 3000 psi
Last Test Date: 4/25/58

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