The market-place of Lepcis Magna, built in 9-8 BC. Shown here is one of the two circular market-halls. In the foreground is a stone bearing the standard measures of length (shown in more detail in the second picture below). Stones have also been found containing precise cavities to act as measures of volume, as well as balances and weights.

Photo ©1995 Stuart Laidlaw, Michael Halliwell, Institute of Archaeology, UCL

In the foreground
of the market-hall above is a stone bearing the standard measures of length (highlighted in the picture below):

Photo ©1995 Stuart Laidlaw, Michael Halliwell,
Institute of Archaeology, UCL