What are the typical dimensions of an Ambika inside its case?

From both the Mutable website, as well as the Laurentide/TubeOhm sites, I have not seen any listing of what the size is.
I know a few cases exist, I just want a rough estimate!
Anyone care to throw some metric/imperial units at me???

A standard plexi case is roughly 27cm x 17 cm and 6 cm high… A metal case with wooden sides is a bit wider.