When did they change from “m/m” to “mm”?
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Body 5
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I’m not sure what that means.
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Oh sorry. You’re right. That was way too generic of an answer.
Early 80 to mid 80s.
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That’s more like it 
Thank you 
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I thought you and I were on a body number relationship by now. 
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Somehow I had missed this post on Nimrods blog. - this is awesome! Thanks