The 10k Gold Marked Blue Key Honor Society membership lapel pin from 1943 is a valuable collectible piece that represents the prestigious Blue Key Honor Society. Made in the United States, this signed lapel pin is a symbol of honor and dedication, perfect for someone who has achieved membership in this exclusive organization. The gold marking adds a touch of elegance and sophistication to this historical memorabilia item, making it a cherished keepsake for any Blue Key Honor Society member or collector.