Grand Slam (1975)
From Video Game Morgue File
					Grand Slam was a Pong derivative from Westlake Systems offered as both an upright cabinet and a cocktail table format. It featured three different game variants called Super Soccer, Twin Tennis, and Solo Polo which could be selected by a button at the front of the machine by the coin box.
Advertisement
- 
			
			(1975)
 - 
			
			(1975)
 - 
			
			(1975)
 
References
https://forums.arcade-museum.com/threads/westlake-systems-grand-slam-pong-clone.339366/