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					Originally Posted by henri
					
				 Thank you Sir for your comments . I guess you are right , there is a possibility to extend the time frame for an earlier period . No much books references unfortunately ..... Into the Jean Lhoste book  " Armes Blanches " page 142 , there are some informations ( sourced from Aries work ) where it is mentioned a marking S & K around 1830 ... | 
	
 Currently the best book giving historical biographical details of edged weapon manufacturers in Germany is :
'German Knife and Sword Makers' ( Complete Edition A to Z Hardcover – published 2015 )
by Anthony Carter (Author), John Walter (Author), Henning Ritter (Author)