Title: Workers with striped shirts used to identify the group that found a gold lode in a given lot, Serra Pelada Gold Mine, Brazil, 1986 [1.600×1.068]
Source: https://reddit.com/r/HistoryPorn/comments/m4fxov/workers_with_striped_shirts_used_to_identify_the/
Author: https://www.reddit.com/user/MartianAndroidMiner