Boeing 707-121. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-121B. It is related to Boeing (the company) and Boeing 707 (the aircraft) and Boeing 707-121 (the aircraft) .

Boeing 707-123B. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-124. It is related to Boeing (the company) .

Boeing 707-131. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-131B. It is related to Boeing (the company) and Boeing 707 (the aircraft) and Boeing 707-131 (the aircraft) .

Boeing 707-200. It is related to Boeing (the company) and Boeing 707 (the aircraft) and Boeing 707-720 (the aircraft) .

Boeing 707-220. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-227. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-283B. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-300. It is related to Boeing (the company) and Boeing 707 (the aircraft) .

Boeing 707-300B. It is related to Boeing (the company) and Boeing 707 (the aircraft) and Boeing 707-300 (the aircraft) .