Found this at a yard sale but I have no idea what it is. Thoughts?

For many individuals, history is a subject encountered during their educational journey, often resulting in a greater number of forgotten details than retained knowledge. While it may not be the most favored topic for everyone, it does offer intriguing insights worth exploring. This is exemplified in the captivating image we have here.

“What exactly is a washroom?” Dylan inquires as he passes a sign labeled “washroom.”
“And what is being washed in there? Oh, it’s a restroom. The only thing I wash in there is my hands,” he remarks to his wife. Off-camera, Shelby can be heard questioning, “Do you rest in a restroom?”
“That’s a valid point. It doesn’t quite make sense,” Dylan responds.
Online users quickly took to the comments section to share their preferred terminology for this essential space. “It’s referred to as a bathroom, restroom, washroom, and toilet,” one user noted.
Another commenter recounted their experience at Disneyland, stating that when they “asked for the washroom,” they were directed to the laundromat instead.
A third user humorously added, “Just wait until he learns about water closets.”

According to Merriam-Webster’s Dictionary, a “water closet” is defined as “a compartment or room with a toilet” or “a toilet bowl and its accessories.” Historically, the term “bathroom” referred to a space designated for bathing, while “restroom” implied a place for resting or preparing for the day, utilizing the sink and mirror. If one needed to relieve themselves, they would use the toilet located in the water closet. Depending on geographical location, this room may be known by various names, including loo, restroom, bathroom, washroom, lavatory, or WC. In contemporary settings, one often encounters signage indicating WC in public areas such as airports, restaurants, or hotels, serving as an alternative term for “restroom” or “bathroom,” frequently associated with a more formal or universally recognized sign for international visitors.The Evolution of the Water Closet
Prior to the 19th century in America, indoor toilets were considered a luxury, primarily accessible to the affluent. The majority of the population relied on outhouses or other outdoor facilities for their sanitation needs. Although residences often featured “bathrooms” for bathing purposes, these spaces typically did not contain toilets. The widespread adoption of indoor plumbing commenced in the late 19th century, culminating in the introduction of the water closet by 1890. These facilities were designed to separate the toilet from bathing areas.
It was not until the early 20th century that the modern bathroom, which integrated both bathing facilities and toilets into a single space, became prevalent. While this combination offered a practical solution for conserving space and streamlining plumbing, it also compromised privacy, particularly in shared environments.
Over time, the term “water closet” evolved to denote a small, enclosed area within a larger bathroom, specifically designated for the toilet. These water closets frequently include a small sink for handwashing, rendering them self-sufficient and convenient. In an effort to clarify the concept of the water closet, users on Reddit engaged in a discussion titled, “Why is a public WC called bathroom if there is [no] bath?”
In response, one Redditor remarked, “Americans might similarly ask: ‘Why is it called a WC (water closet) if it isn’t even a closet?’” The comment elaborated that “bathroom” or “restroom” serves as the “preferred US euphemism for ‘room with toilet,’ while other regions utilize terms such as ‘WC,’ ‘lavatory,’ or ‘loo.’”
A third participant noted, “In Russian, it’s referred to as ‘a room without windows,’ even if there is a window present,” while another added, “In Esperanto, it’s necesejo, meaning ‘necessary place.’” Concurrently, other Reddit users debated the terms washroom versus bathroom and restroom.
“Canada is well-known for using the term washroom,” stated one netizen, while another clarified, “I’m from the Midwest, and washroom is quite common here. Bathroom or restroom are probably the most frequently used terms.”