Spirograph 1971 Vintage by Kenner No 1421 Drawing Patterns Only Missing 1 Holder

Inside the box is dated 1971 and the instructional booklet is dated 1973.

Includes:
Original box with pattern guide printed inside the cover.
16-page instructional booklet.
All wheels, gears, and rings. (One ring holder is missing.)
Ink pens (they do not work).
16 sheets of paper.

Please read the Condition Description and review the photos, as they are part of the overall description.
Thank you!