Vintage child's chair wood 70s buying

Great Vintage children's chair made in the 1970s. Very unique kids size chair, made of a solid wood in a buying nice architecture style. Featuring an ocher plastic part around the thick screw. The chair is adjustable in its height, however, we recommend to use it only completely scaled downed. There is no screw nut or anything to fix it, so it would start to wobble when screwing the seat up. Very solid this way and ready to use, great rare item.

Measurements:

77 cm.