> The thirteen Afro 4000 diesel locomotives that have so far been delivered to Prasa are worth R600 million and form part of a larger R3.5 billion order for 70 new locomotives.

https://groundup.org.za/article/spain-investigates-the-too-t...

https://businesstech.co.za/news/government/92966/new-report-...

I think most commonly they'll use dozens for any number larger than 12, not specifically a multiple of it