Alien: "Pilot in Cockpit" (work 380) (1978) by HR Giger references a derelict ship detail illustration by Chris Foss ?

 

leading from

 Alien: "Pilot in Cockpit" (work 380) (1978) by HR Giger

and 

Alien: derelict ship detail for Alien (1977) by Chris Foss ?

 

 

 

a) Derelict ship detail illustration by Chris Foss 

 

Derelict ship detail illustration  by Chris Foss  ( Source: Charles Lippincott on Facebook)

 

b) Alien: "Pilot in Cockpit" (work 380) (1978) by HR Giger

c) Angled ribbing becomes the supports for the telecscope.

 

d) Here is the  Mae West lips shaped end of the space jockey telescope as built ( but not pictured in Giger's artwork) in connection with the various small circles in large the circle.

e) The circular form and the various small circles in large the circle next to the end of the telescope with the set of minu circular domes