The first story in which Sydney used the photo-references of Hans Meyer and other models was PASTMASTER (H2287 – H2351) in which Ap Tiryns, a criminal scientist from the far future plans to transport the entire Lunar colony with its 20th century technology , back 13,000 years in time and thus to re-write all of human history from that point.
It is interesting to compare the existing images from the photoshoot to the panels in which they were used. An example is included below together with some full body shots of Meyer in action poses
An interesting feature to note about PASTMASTER is the existence of the Time Guardians whose purpose is to prevent the timelines of history from being changed and to avoid all the ensuing paradoxes that time travel might create. This story was written in 1961 long before the Timelords of Doctor Who or Sapphire and Steel came onto the scene. Another first for Jeff Hawke!
Skipper Prossit
Nice to see the photos . He looks very like Hawke