In September, 2011, I posted about the Sinus ashtray by Walter Zeischegg for Helit. These models are given numbers 84005 (small, 5” diameter edition) and 84009 (large, 8” diameter edition). The best way to describe the 84005 and 84009 models models is that when looked on edge, the wave is the same height all the way around the ashtray.
An alternative and less commonly encountered style of the ashtray is the 84030, where the waves are shifted so the edge has three wide parts and three narrow parts The ashtray rests on the three wide parts. I previously described the 84030 in red and green. Recently, a trio in white, red, and and black sold.
eBay item 131351374064 sold November 23, 2014 at 11:35AM for €68.00 plus shipping ($77.73) (Germany). Nine bidders placed 10 bids on the set of ashtrays.