In the third photograph Brunel is seen sitting, minus his trademark cigar.
(Note, it appears Brunel is wearing a different suit and it is possible this photograph was taken at a later date
than the other two.)

November 3, 1857: From left to right are the John Scott Russell (builder), Henry Wakefield (Russell's
assistant), Isambard Kingdom Brunel (designer) and Lord Derby.

Launching the Great Eastern, it is unclear if this photograph was taken on Nov. 3, 1857 or during a later launch
attempt.

1858: An engraving of the Great Eastern fitting out at Deptford on the Thames.

1858: An engraving of the Great Eastern fitting out at Deptford on the Thames.