Photograph of 8 year old Para rubbert trees being tapped on a plantation in Gikiyanakand[?] in the early 20th century.

Photograph of a man collecting rubber from a 10 year old rubber tree which has been tapped using a herring-bone pattern on the Kempsey Estate, Selangor, [Malaysia] in the early 20th century.

Photograph of two men standing next to a Ceara rubber tree that has been tapped using the full herring-bone system in Hawaii in the early 20th century.

Photograph of a Chinese tree tapper at work on the Atherton Estate in [Malaysia?] in the early 20th century.

Six diagramatic illustrations representing different tree-tapping methods: V tapping; herring-bone; half herring-bone; basal V; spiral and New Northway.

Photograph of a rubber tree that was tapped using the half herring bome paring system done by Dr. Huber with his tapping knife in the early 20th century.

Photographs of rubber trees: the image on the left shows a Hevea rubber tree showing two Basal V tapping marks and the image on the right shows a Rambong (ficus elastica) rubber tree in the early 20th century.

Two photographs showing both the native and improved method of tapping Jelutong trees in Sarawak, Malaysia in the early 20th century.

Photograph of a man standing next to a Para rubber tree that has latex collecting cups attached to it at various intervals at the Botanic Gardens, Singapore in the early 20th century.

Photograph of a man using a knife to tap a rubber tree on a plantation in [Southeast Asia?] in the early 20th century.