I have a lookup list that contains a title, a description and an attachment image.

I plan to have  a lookup list on a form that access this lookup list.   I already know I can display  the description from the selected lookup.   Is there an easy way to get the image on that lookup list to display?    I found a bit of JS to get the image URL but I was hoping there was an easier way.

Or is there a way to get an attachment's URL in a workflow?