84 rows.

Kunststricken 717: “Wasserkresse”
pg 7, Abb. 16

Neue Mode 5207: “Kunststrickdecke mit stilisiertem Blattwerk”
pg 8, Modell 15, 88 rows.

Lavori 11:
pg 12, number 19, 88 rows.

Diana D 908: “Bäumchen in der Runde”
pictured on the cover & pg 22-23, figure 16, 88 rows.

Similar patterns by Herbert Niebling:

• Vobachs 146-31

• Wasserkresse

• Waldesruh

Similar heart-shaped structure:
Burda Model 3917/69, designer unknown