DOVER-FOXCROFT — After 75 straight years, the Kiwanis Club of Dover-Foxcroft has decided to bring its annual summer auction to a close. Club members say the decision comes with mixed feelings including gratitude for the years of success, sadness for the end of this event and excitement for what comes next. For decades, the auction has been a favorite local tradition. It brought people together, raised money for good causes and helped support pr…