Shotshell identification


#1
  1. Does anybody know a pre WWII (1937) shotshell with following caracteristics ?

16 gauge
green paper tube.
Rubber base.
Hstp : PATENT 16.

  1. same question,same year:

16 gauge
black paper tube.
Rubber base.
Hstp : None

I think there are US made.
Could you confirm ?
Thanks