What CP3 is this?

[Smokin ACE]

Anyone know what Cp3 this would be? Looking at buying this 6.7 cp3 from a friend and he got it used but was told it was an Exergy 10mm pump. Judging by the marks, Exergy told me it should have an EP and some numbers on it but this has "MD 10". Wondering if it was a very early Exergy pump or if its some other brand? Just trying to figure out exactly what it is before I commit to buying it.