Definitely paper shears.
But too short for even a one legged paper hanger! :)
Besides good wallpaper shears are usually bent handles on top of being longer and thicker.
These are called banker shears. General paper trimming. Straight handles, because bankers were cheap.
I have a picture of mine (both kinds) somewhere in my files.
Can't find it today though!
I hate when I forget a file name because I named it something lame.
yours Scott
PS I did find this one. This illustrated the thickness of the metal at the crucial pivot joint.
In this picture, lt to rt (click the attachment to blow it up)
Heinisch tailor shears (the real deal)
Unmarked bankers shears (thinnest of the group)
Modern tailor shears.
Paper hanger shears (about 30% thicker than the bankers)