So, recently, Uwe Glahn and I were discussing the nature of Abell 11. He said that it's clearly a galaxy on images even though basically every place on the Internet lists it as a reflection nebula. Well, I've now looked into it and I have to also say that it also clearly looks like a galaxy on images to me. But what do you say?
George Abell discovered it on survey plates taken in Orion and believed it to be a planetary nebula. It wasn't until the sometime in the 1980's that it was first considered to be not a planetary nebula but instead a reflection nebula. The only reference I can find for it being cataloged as a galaxy is in the 2006 release of The Two Micron All Sky Survey.
Below is a 1' wide image of Abell 11 from the PanSTARRS archives.
Below is a 1' wide image of Abell 64 (a confirmed galaxy) from the PanSTARRS archives.
Below is a 1' wide image of Abell 76 (a confirmed galaxy) from the SDSS archives.