Vintage 10K Yellow Gold Compass Tie Tac Pin Hat Pin

Vintage compass pin/tie tac is 10K gold. Really cool compass with the N, S, E, & W letters on it. It was made by Star Engineering Company. According to my research, the 10K gold amount is 1.35 grams. My research states that while the front of the pin is 10K gold, the back of the pin is not. My research states it is the front of the pin that weighs in at 1.35 grams of 10K gold. The pin is in very good condition ***Half of the proceeds will go to The Village Nac, a non profit tiny home community for people who have experienced mental health issues, trauma, and/or homelessness***