Your cleaner was essentially British-sourced, although it does have certain parts made here in the U.S. at Hoover's North Canton, OH plant.
This was the successor to the 913 and 918. It was produced from 1978 to 1983. It would be rare if I actually came across one with an orange bag. This cleaner continued being sold in its country of origin through the 1990s, as model C1312 and those last units did have an orange bag.
~Ben