It could be something like this as posted by Al Czervik in "The Wordless Picture Thread" on 10-19-2012:
They are not really cuboids but blocks of beef. If this is "Beinfleisch" it is a lot different then the pieces I failed to make as "Kind of" Beef Ribs
some time ago.
So how would I want to smoke such blocks of beef (with or without bones)?