Here's a photo of the symbol on a pedestrian traffic light in Koeln Germany. Please note the positioning of the dots. Two up, one down.

Here are examples of advertising campaigns using the blind symbol: posters and as an armband. I know it's an Austrian campaign, but they have the dot positioning in common with nearby German speaking countries. Two up, one down.

Here's a few places to buy the Blindenkennzeichen, for example a full set at othopoint, or the Rollatorblindenflagge. Again, please note the positioning of the dots. Two up, one down. Another shop for Verkehrsschutzarmbinden and other traffic helper items offers more discreet metal pins as well. You will find tonne of Verkehrsschutz Armbinde if you google that, and gee they all have the two dots up and one dot down. Go figure.

Nobody here said anything about blind dates or any other form of word play when discussing the traffic symbol but I hear there's a movie theatre looking for a projectionist if you're interested.

Bonus: stock photo of blind man crossing the road.