This is Thrilling Mystery for October 1936, cover artist unrecorded. The ISFDB entry for this issue is here. The version of the cover above was found in this post at Pulp Covers. The version preserved at Galactic Central is much smaller but has sharper color.
So, when they said hands off the treasure, they meant it literally.
The Shriner fez is a nice touch.
I didn’t know they cut the hands of female thieves off as well.