New Zealand - Kauri Gum - Gum climbers' camp on the Waipapa River, near Rangiahua - 1918 - Albert Percy Godber photo Kauri gum - A fossilised resin extracted from kauri trees - Made into crafts such as jewellery - Kauri gum formed when resin from kauri trees leaked out through fractures or cracks in the bark, hardening with the exposure to air. - Lumps commonly fell to the ground and became covered with soil and forest litter, eventually fossilising. - Other lumps formed as branches forked or trees were damaged, which released the resin. (Reference: Wikipedia) --------------------- Image source: File:Gum climbers' camp on the Waipapa River, near Rangiahua, 1918 ATLIB 301546.png Godber Collection, Alexander Turnbull Library 1918 Godber, Albert Percy https://commons.wikimedia.org/wiki/File:Gum_climbers%27_camp_on_the_Waipapa_River,_near_Rangiahua,_1918_ATLIB_301546.png