Early packaway, showing no connections between the frame and the header rail: (Clausager)

Early 'scissor' folding, showing the header rail attached to the frame: (Clausager)

Early and later folding frame brackets for the header rail. Different header rails (BHH496 and AHH6347 respectively) are listed in the Leyland Parts Catalogue, but parts suppliers are only showing the earlier part number implying the two are ostensibly the same: (Moss)