V2 development?

[Zeppelin]

Has anyone encountered any images of a proposed 1940's V2 type rocket with 4 strap on boosters, similar to the later Soviet R-7 Semyorka design. I encountered one image, once, but have failed to find any reference online since?

 

[Grey Havoc]

Definitely rings a bell, but I can't bring it into focus at the moment, sorry.

 

[archipeppe]

For sure it wasn't a von Braun design. The idea of clustered rockets came out after the war in Gottrupp's team under the Soviet rule.
Von Braun envisioned an evolutionary approach where the development line A5-A4-A6-A9/A10 was incremental.