Photograph of a group of men standing in a road at a rubber plantation with para rubber trees on either side - in the foreground its 2 years old and in the background its 1 year old in North Hummock [Estate in Malaysia] in the early 20th century.

Photograph of two men standing next to the Para rubber tree no. 2 that is one of the oldest in the Malay Peninsula in the early 20th century.

Photograph of two men standing in front of 9 month old Para rubber trees in a nursery in the early 20th century.

Photograph of a Plantation tree that is 55 feet high and about 15 years old growing in front of a house and paddock in the early 20th century.

Photograph of a 5 year old rubber trees with herring-bone tapping patterns on the Batu Caves Estate in [Malaysia].

Sketch of a map of the Amazon valley indicating the locality on the Tapajos plateaux where the original stock of the plantation Hevea came from in 1876.

Photograph of men tapping twelve year old rubber trees on a plantation in [Malaysia?] in the early 20th century. In the image, the men are cutting a spiral pattern into the trees and a water buffalo is harnessed to a large cannister.

Photograph of a man tapping a young rubber tree using a herring-bone pattern on the Rantau Panjang Estate in [Malaysia] in the early 20th century.