straw trigger
 

thank you on info on change from straw to blue trigger. is their a chamber date or serial number to tell difference thank you

The Luger strawing stopped at about 3000t in 1937. That corresponds to roughly April 1937. Hope this helps. :)

From few people could you get a direct answer that is correct off the top of his head :)

I moved this from the tech help area to the new collectors area.