Yellow button up vintage flannel

(1st picture shows the color the best) I can’t for the life of me figure out what the brand is, all I can see is that it starts with an S, has two pine trees on the label, and says “authentic, est. 1966” 100% cotton, feels like flannel Size XL Measurements: 52” bust, 30.5” length, 31.5” shoulder length Some discoloration on left sleeve, pictured Perfect for outdoor activities, hiking, camping, cold weather, winter, and layering!