The phrase "small gallery" refers to a small space, usually a room or building, where art is exhibited or displayed for people to see and appreciate. Full definition
In the late 1980s his work began to feature in small gallery spaces and the pages of style and culture magazines such as i - D. (zabludowiczcollection.com)
Women still accept smaller gallery spaces more readily than men. (theguardian.com)
I have two small gallery walls in my house and I want to add more. (amidstthechaos.ca)