German used Siamese M1907 Bayonet

Very good conditioned bayonet with double edged blade and scabbard, no other marks then 'W', which presumably stands for the maker Weyersberg, Kirschbaum & Co. This mystery Bayonet has been described a the M1907 bayonet which was intended for the kingdom of Siam (Thailand). This one however was used by the German Kaiserreich as ersatz bayonet (EB149) during WWI. These were issues to the Landsturm troops along with the Gewehr 88.