Looks like a shop made bashed together fixture for drilling parts, that may have more then one location to drill.
Back in the days at the Standard Forge, after making my escape from the steam hammer shop. With hearing and all fingers intact. We did a number of once a year parts runs in the machine shop. Like the old style US Army truck hood latches/BR type (Before the rubber pull stretch type). After the forge shop fill a metal skip skid 8,000 to 10,000 pieces. The foreman would make up fixtures with what we had or he could find.
One for a part that I recall was for tractors here and shipped to GB had two holes drilled and chamfered. He used one of the
drill/mill tables like that holding the part. A real PIA as the idea was you had to crank the table back and forth, I did all of the first hole, then did the second hole. Was soundly bitched out as killing the job! By two other guys in the shop, But they didn't want the job as the piece count was upped to 15,000 a run. Foreman's attitude was do it your way, if it better for you.
But then again that photo could have just triggered a senior moment
