NYMark wording
Undated
NY
New York NY, USA
c.1922: 45 Lispernard St. | c.1934: 36 W. 47th St. New York | c.1943 – c.1950: 15 W. 36th St. New York 18
Designer marks
A Ciner jewelry mark belongs to a New York firm at 45 Lispernard St. around 1922; it later used 36 W. 47th St. around 1934.
Undated
New York NY, USA
c.1922: 45 Lispernard St. | c.1934: 36 W. 47th St. New York | c.1943 – c.1950: 15 W. 36th St. New York 18

Undated
New York NY, United States
The source lists C M C, Ciner, CMC and Mayfair variants with separate circa dates that are not assigned to this image.