carrying prams on buses in Lower Hutt, 1950s.

Just hooks on the back, or an alcove, in both cases with a bar on the base. The NZR Road Services bus on the left seems to have a sign saying "school bus" so you wonder why there is a pram on it too.  Is the bus in the distant right an AEC?

WCC buses mostly had alcoves in the left side with a base bar, while DCC buses had hooks on the front (see earlier posts). 

Another photo that was considered for, but not used in the book Wellington Transport Memories.