1.. oval - portrait format
2.. all hechshers
Authority: Rabbinate of Zurich, Switzerland
Source: Schmerling's® advertisement for Rosemarie Milk Chocolate published in Hamodia newspaper dated 21 February 2007, page D23.
Size: 16.5mm W x 18.0mm H
Comment: This 'oval' image is probably just a reshaped circle like other similar hechshers belonging to the Rabbinate of Zurich.