A: Rumba, Samba
B: Cha Cha, Mambo

Label: Unknown
Year: 1961
Run out groove: KB2459A-2

Additional Info: This record is self-published as far as I can tell by the dance instructor couple Dean and Mary Constantine. There are written instructions in the sleeve for each dance as well. They were based in my home town of Minneapolis, MN, USA. Here is what the record sounds like: http://www.youtube.com/watch?v=VV9HbpMMYZg&list=UUpeTEqs2MHmZjc32dBqFpgA
(a video I took). There is a companion red record as well.