A sketch by Tom Young, based on an earlier drawing by Rose Maxwell in the California Citrograph, shows a Chinese worker seated between navel orange trees, carefully wrapping fruit and placing it in a crate. The sketch is from the booklet, A History of Citrus in the Riverside Area, published by the Riverside Municipal Museum, revised edition 1989.
My Notes:
This was a type of packing technique credited to Chinese pickers which resulted in a crate of oranges of different sizes that was tight and stable and could make it to eastern markets in relatively good condition.
But this was a long time ago, before the Chinese were driven from the industry and when a lot of packing was done either in the field or on a depot platform.
Another term for this was the "heavy pack".
As the industry evolved it became standard practice to pack only one size of fruit in a packing crate.
Bob Chaparro