I would ask you to identify this weapon, especially the abbreviation R.G. In the literature the inverse of G.R.Object belongs to my colleague.
Thank you very much John for your reply! This is a great forum where you can meet knowledgeable people.Thank you again.Regards.Hi Wojtek,
I may have a partial answer to your question using the following East German aka DDR book as a reference; Europäische Hieb- und Stichwaffen: Aus der Sammlung des Museums für Deutsche Geschichte, Aflag 1986 (German Edition) German Edition | by Heinrich Müller Hartmut Koelling
The saber is for an officer serving with a Prussian Fusilier or Jager Regiment M 1826 Ref: Pages 350,351, & 421 Saber #527
Because it is an officer saber, the sword was most likely privately purchased. So the initials. G R, on the langet, are the owners.
The markings on the back of the blade are Imperial markings indicating the Prussian military acceptance or authorized saber. So again, I am taking a Scientific Wild Ass Guess aka SWAG at these markings.