It may be the designers/companies initials.
The acronym LR stands for Long Range.
LR Stands for Long Rifle. It's a larger cartridge and carries significantly more powder. The alternative to LR is a .22 short.
You have to be a little more specific. In what context ?
Long Reach
The jewelry maker with the mark "LR" is typically associated with the designer Lita Ritt, known for her unique and artistic pieces. This mark can also be linked to other jewelers, so it's important to consider the context and specific style of the jewelry to confirm the maker. Inspecting the piece for additional hallmarks or details can provide further insights into its origin.
SAO could stand for "Sterling Silver" in the context of jewelry, indicating that the piece is made of sterling silver, which is a popular metal used in the production of jewelry.
Not Rated
Mexican Sterling
An LR mark stamped inside a ring means that it was manufactured by a jeweler named Louis Rousselet. Louis Rousselet was from France and created jewelry for over 50 years.
What does cm mean on jewelry?
I believe this is for the Royal Jewelry - RJM found page on Facebook.
Copywrited