








Image credit: Boeing
File source: NASA NTRS









Image credit: Boeing
File source: NASA NTRS

Image credit: Boeing Aircraft Company
Image source: Numbers Station

Image credit: Boeing Aircraft Company
Image source: Numbers Station

First-stage lunar base. This is the type of shelter proposed for the construction crew responsible for building permanent quarters.
The Next Fifty Years On The Moon
by Erik Bergaust
G.P. Putnam’s Sons, 1974
Image credit: Boeing
Image source: Numbers Station
Image credit: Boeing
Image source: SDASM Commons
Image credit: Boeing
Image source: SDASM Archives

Image credit: Boeing
Image source: Mike Acs

A combine of three lunar shelters provides adequate quarters for a construction of eighteen men. It will take many years to complete a major moon colony for 100 or more men-and women.
The Next Fifty Years On The Moon
by Erik Bergaust
G.P. Putnam’s Sons, 1974
Image credit: Boeing
Image source: Numbers Station