bobbee
Posted September 13, 2014 - 9:05am
None of the LM ads show an unengraved octagon case, all are engraved. All ads with the octagonal LM use the same image, and are from 1921.
I would say Rubaiyat, as it is a 1920 case, and all LM ads are from 1921-23.
We have a Rubaiyat ad from 1919 with a plain octagonal case.