4-1/16 inches tall, the pin bar at the top has "SEXTUS DECIMUS" in gold on a blue enamel background. The lower ribbon bar has the dates "1936-37" in matching colors. An enamel on gold badge in the center of the ribbon has a man climbing a hill and holding a flag. Banners around the edge read "EXCELCIOR / ENGINEERS / LODGE / No 4248" The pendant square has a further pendant framed Pythagorean Theorem. The reverse of the square is engraved "Presented to / Wor. Bro. Alfred Lee / as a mark of esteem / from the Brethren / upon leaving the chair / 18th September 1937" followed by maker's mark "WP&S" and hallmarks "9 / .375 / G / N". 1 oz troy, 31.2 grams.