Click here to download a PDF version of the instructions for this kit.
Diagram O5 (‘oh five’, not ‘zero five’) and O6 came later through the evolution of
the design, and were basically a slightly taller version (7ft 6in) of Diagram O4.
The latter was already tall enough to stack two milk churns so it may be that the
intention was to use the increased height for stacking fish crates or barrels (the
lot numbers indicate fish vans not milk vans). The only difference between the two
diagrams was the ends, with Diagram O6 having opening end doors.
The kit is made from laser-cut Rowmark (a hard plastic) with laser-cut self-adhesive
card for the side and end framing, and a self-adhesive card roof. Two Peco 10ft wheelbase
guards van chassis are included which require alteration to make the required six
Alternate ends are included to make either the Diagram O5 or Diagram O6 wagon.
The Great Western Railway used the telegraph code ‘siphon’ for all of its milk carrying
wagons. Before the days of refrigeration (even using ice rather than mechanical refrigeration)
the easiest way to keep the contents cool was to use slatted sides that would allow
cooler air to flow through the body.
Despite the larger and all enclosed siphons that came later, the six wheel slatted
side design lasted from the late nineteenth century to nationalisation (most were
then scrapped, but some were sold out of stock, or retained as wagons for carrying