

The earlier yellow flag has a light blue disc partly covered by three dark blue waves edged white, with large dark blue RIJNAARDE to its right. Logo and name occupy about a quarter of the flag. Jan Mertens describes them as appearing on the horizontal median line rather than centred; that placement is not specified more precisely.
The later logo retains the yellow field. Two stylised light blue waves run beneath part of the dark blue RIJNAARDE name, ending after AA. Those two letters have no crossbars and are outlined against a light blue disc rising from the waves. An eBay example was described as new and unused, measuring 1 by 1.5 metres.