today's dream … a reality tomorrow a reality tomorrow Build a permanent home with permanent materials. GIBRALTAR BOARD offers …. Insulation against heat and cold. High resistance to borer. Deadens noise. An ideal base for all types of decoration. Low initial cost … low upkeep. Gibraltar Board's gypsum and pumice core is your assurance of a quality fire resistant interior lining. The blow-torch test proves Gibraltar Board FIRE-RESISTANT. After 20 minutes exposure the gypsum-pumice core remains intact. GIBRALTAR BOARD TODAY'S LOW-COST FIRE-RESISTANT WALLBOARD Winstone LimitedP.O. Box 395, 69–77 Queen Street, Auckland.