One sees the O. Geyger number atop many of his examples and it is possible that he contributed some effort, but it would have been in the area of adornment, if any. There's an O/U DR Geyger peddled on this page along with some unbelievable examples out of Suhl, which J. Novonty also sourced:
http://www.feine-jagdwaffen.de/cms/index.php?id=13,0,0,1,0,0
copy & paste
Ludwig Schiwy more than likely sourced from the same craftsmen as O. Geyger
Imm. Meffert self opener(Greener sourced???)
Miller & Val. Greiß Muschelverschluß/Stabilverschluß/Idealverschluß
J.J. Reeb - possibly home grown example
Sempert & Krieghoff on Jäger's patent
Kind Regards,
Raimey
rse
