This catalogue was sent to the Wellington City Council by the British General Electric Company Limited in March 1919. It advertises their options for peace illuminations including flags and coats of arms. A covering letter noted, helpfully, that they could supply the New Zealand ensign in place of the Australian one advertised.
As a result of the coal shortage Wellington did not have illuminations, but many other towns and cities did and may have ordered material from this supplier. Click on image or follow this link to see the booklet.