1993 Buick Park Avenue Owner's Manual - Page 166
1993 Buick Park Avenue Manual
Page 166 highlights
Symbols on Road Signs IIoNLV! \ , KEEP RIGHT LEFT OR THROUGH RIGHT TURN ONLY RECTANGULAR (square or oblong) signs show speed limits, parking regulations, givedirections, and such information as distances to cities. x There are many international road signs in use today. The basic message of many of these signs is in pictures or graphic symbols. A picture within a circle with a diagonal line across it shows what not to do.