R.O.R. or ROR is a Danish Makers Mark for Richard Oxholm Rasch - Copenhagen 1913 to 1937
https://www.925-1000.com/denmarkR.html
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ROR is the Mark for Richard Oxholm Rasch by: Robert Wegbb
ROR is the Registered Mark for Richard Oxholm Rasch - Copenhagen 1913-1937. DO NOT let anyone tell you any different. You can look find it here:
AND if your ring has the mark 14KP that means 14 Karat Plum which is a mark used back then to Guarantee that the ring was 14 Karat Gold or better. Same if it was 18 or 24. So if you have this mark your ring was made between 1913 and 1937 by Richard Oxholm Rasch.
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Not Danish... It's 100% American by: Anonymous
ROR = Rings O'Romance Trademark of Benjamin & Edward James Gross Co. NYC
I know because EJ was my Great-Grandfather.
The company was acquired by The Westhall Co in Akron, Ohio in 1963. It later went on to become the basis for the largest retail jeweler in the U.S., now known as Sterling Jewelers.
-Bradley Gross brad@ringsoromance.com
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Rings O'Romance by: Anonymous
ROR is the Hallmark of my Great Grandfather's Brand. It was registered to The Benjamin & EJ Gross Company, which was the first nationally advertised line of high quality diamond rings in the U.S. EJ Gross was my great-grandfather. Rings O'Romance was their brand.
He invented the first interlocking two-piece bridal set. US Patent # 2077234 in 1935.
I own the trademark now.
Bradley Gross Diamond Designs, Inc. brad@ringsoromance.com
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ROR Maker by: Yvonne
not certain possibility Danish maker - Richard Oxholm Rasch (1913- 1937)
Good Luck let me know if you need any help. Yvonne