Samos E-5

[Garixon]

у Гюнтера - http://space.skyrocket.de/doc_sdat/samos-e5.htm

According to a 1965 memo by the CIA's Albert Wheelon, the E-5 capsule was designed so that it could be used as a piloted space vehicle for a military counterpart to NASA's Mercury program.

в англоязычной Вики - https://en.wikipedia.org/wiki/Samos_(satellite)

Samos satellites after Samos 2 also sported a large "mushroom cap" nose cone, as early plans had envisioned flying a manned capsule similar to Mercury.

тут ещё подробнее - http://www.thespacereview.com/article/1410/1 и http://www.thespacereview.com/article/1410/2

и картинки с последних