Does anyone recognize this lamp? Or know how I can repair/mourn/replace the shade?

Hey guys!
I'm new to the site, having been recommended it by some Facebook folks. I've enjoyed looking around so much. I've been on a quest to find out some information about this lamp. I'm looking for who the maker might be and being fairly certain that the shade has to be replaced, I don't have any idea where to go or how to start that search.

A brief history about the lamp (such as it is) -- it came from an estate sale of a distant relative and my grandmother purchased in sometime in the 90's. She said she paid $20 for it and that the shade was already cracked and chipping when she bought it but she loved it and knew it was special. But it's been in her basement ever since, where many pieces live that have "precious souls but wrinkled suits." Regionally, relatives live in the gorgeous hills of Northern Arkansas but have traveled all over so I can't say one way or the other where it might have been purchased originally.

It's a very heavy lamp. Brass with a solid base, standing around 4' tall with the simple bird decoration and a boom arm and a single bulb with a mesh shade fixture and the shade here is I believe is fiberglass? I know so very little about lamps of this era. I love collecting old things, mostly large furniture pieces -- I have many art deco pieces and some Danish Mid Century pieces. I have plenty of glassware and linens. But this lamp is just a mystery. Some have suggested it might be a Rembrandt Lamp and to look through catalogs but OH BOY. I don't know where to start.