I have previously posted about David Douglas, who is perhaps best known for his Genie server carafe.  David Douglas and his company was also responsible for other drink and dinnerware, which bore the trademarks Accalac (for the type of plastic) and Accaware (for things made from the plastic).

Here is a 7 piece Salad Set, given item number G-307.  The set includes a large serving or tossing bowl, a pair of tongs, and four individual salad bowls.  Labels on the set sport the Accaware name.  This set was new in the box and in green.  eBay item 261760619722 sold February 5, 2015 at 8:36PM for $15.00 plus $11.00 for shipping (United States).  One bidder placed 1 bid on the salad set.

Above:  the entire salad set, the bowls, and the tongs.  Below: the original box.