The details that read as 1970s
The period look comes down to a short list, and you can spot it on a thrift-store find in seconds: fat wooden beads threaded along the arms, a long tail of fringe under the pot, spiral sinnets twisting the whole way down, several pots strung on one line. Old examples were often jute or nylon on a welded steel ring. These eight use the same vocabulary in natural cotton, and the flower pot rope hanger keeps the trailing fringe that dates the style so plainly.
Wood as part of the pattern
Wood carries much of the era. Beads interrupt the arms and add just enough weight for the cords to fall straight instead of curling. A dowel laid across the top converts a suspended design into a flat one, which is how the wood and cotton wall plant hanger works. Green cord and leaf motifs turn up in the group too, both of them period-correct and both easier to place in a modern room than the browns of the original decade.
Styling it without tipping into costume
One or two of these hold a room; a whole wall of them starts to look like a stage set. Give a multi-pot design clear air underneath — over a stairwell, in a bay, off an exposed beam — and leave the plaster around it plain. Strong daylight will fade unbleached cotton, which suits the aesthetic but weakens fiber in the long run, so choose bright over scorching. Fingers untangle a fringe faster than any comb. Pieces built flat on a dowel are grouped in the wall-mounted plant hangers.