Help with identifying this display

I've got several "broken" price tags, that use E-INK displays. Can anyone help me identify these displays, the pictured one I broke while prying open this display. If it helps the display is from a Hanshow nebular 350R-N. Googling the numbers on the display doesn't display any useful information.

I did not steal these, I got them from work, as the wireless function for updating, doesn't work on them.

Thanks in advance