Supposedly, this is what it looked like.

https://www.pinterest.com/pin/535646949401448093/

I think this pic was taken from one of the hour long episodes because Lucille Ball is sporting a hairdo that she had from 1958 onwards.

They should use this if they ever colorize one of these episodes (like the tango one).

I agree. If and when CBS does a I Love Lucy Superstar Special this May, they should colorize "Country Club Dance" because Barbara Eden stars in it. Yeah, you can argue that this was before she became famous (she doesn't get an ovation when she enters) but still.

Let's just have 'em do both episodes. And while they're at it they can do the one with the tulips.

I think this pic was taken from one of the hour long episodes because Lucille Ball is sporting a hairdo that she had from 1958 onwards.

Yeah I think you're right. It looks like the one with Danny Thomas from the 1958-59 season