Try GoeSlab703
Closest I can find are TheSerif Semibold and Officina Serif but it ain't either one...
PMN Caecilia is also close, especially the lowercase s:
http://www.myfonts.com/fonts/linotype/pmn-caecilia/75-bold/testdrive.html?s=There+are+six+billion&p=48
Yves, are you thinking of Lexia from Dalton Maag? It's a lovely slab-serif, but not a match.
http://www.daltonmaag.com/fonts/exclusives/lexia.html?picpage=3
Amasis is close also. I was also going to suggest Lexia because it is another close one but as Marc mentions, not a match. Where is this sample from?
I have spent a lot of time hunting, and I can't seem to find this anywhere.
I thought a lot about whether something with one or two letters changed would match, but even that didn't seem promising, although Amasis with a new 'a' and 'r' would be pretty close.
So it seems this must be a rather new font, or one from an obscure source. I am still hoping to see an answer for this, just to satisfy my curiosity about it.
Let me guess -- it's by Jens Gelhaar again 
You know, I haven't given up on this one yet. It's really bugging me. I found what I think is the closest yet: Placebo Serif by Thierry Puyfoulhoux of Presence Typo. The serifs are not quite right, but the basic shapes of letters are quite close. (IMHO)
Maybe our answer is going to be another font by this designer..
I was thinking about this one, and Apex Serif is pretty close, except for some of its serif placements...
It's not Egyptienne. There is a regular version of this face - 50 styles in fact.
Here is Boton Medium, and it's not a match. The serifs on the c and s, are just the most obvious problems.
Whatever this is, it's not from one of the major foundries, unless it's a custom face they did. It's the sort of thing Font Bureau might do, as a limited face for a special customer.
Could it be Siemens slab? Unfortunately the bold is a crappy jpeg but the serifs match from what I can see. This quote has to do with business machines and M2M and all that stuff (did some google research since Jonas seems to have disappeared). Proprietary font would explain why nobody can find it.
Hehe. I attributed this quote to Lars Godell of Forrester Research (speaking about M2M) last week when trying to find where this sample was from.
Now it seems you've found the same thing and a bit more as it seems you've found the original sample! Where is it from?
Nonetheless, I think you've got it. I think this is Siemens Slab Bold. Now pull back the curtain and tell us how you did it. Or maybe, like any Magician worth his salt, you should never reveal your secrets. 
The proverbial lightbulb...
But my research (google) attributed the quote to Wolfgang Grulke of South African think tank Futureworld.
The sample I posted is from
http://www.tdc.org/news/2002Results/Siemens.html
I hope this Jonas dude appreciates our combined effort. He seems to have fallen off the face of the earth! If he'd only replied to our MANY requests for the source of the sample this might have been cleared up days ago.
I think Wolfgang Grulke mentions "some 50 billion machines" while Lars Godell has that exact quote from the original sample. Both deal with M2M. Yeah, I wish Jonas would come back and shed some light on this but it seems this thread is now an orphan. Still, thanks to your efforts it's another one in the solved column and now we've all learned about Siemens Slab Bold, and perhaps will consider it in a future type-ID so it's all good.
Great work Patty! It pays to be up on your type award winners, although it should be rare for us ever to see this one again, since it is proprietary. So the implication of that is that the original sample was a quote of Godell/Grulke in a Siemens publication? (seems plausible)
Well, anyway, I filed that sample in with my Slab Serif fonts, so I will recognize it if there is a next time. I'm just glad I don't have to keep hunting for more slab serif samples 
Actually - we have seen it before...
Well that seemed to be about Siemens Sans, or did I miss something in that link? It was also 11 months ago. How good do you think my memory is?
(Lots of times I don't even read a thread if it looks like it was solved while I wasn't looking, which is often.)
Still, I'm glad to know about it THIS time.
I remember that last thread clearly but whether we've seen the custom Siemens family before isn't in doubt. Like Mike said, a passing glance at the family almost a year ago was hardly enough to register all the destinctive shapes of the variant slab face, and since it was a corporate face, I never thought we'd see it again unless someone asked "what's the siemen's face?" at which point a bell would ring. BUt without any sort of indication that the source of this was a Siemens document (which it may or may not be), the ID was pretty challenging. That's why I said it was pretty good of Patricia to make the connection. Nuff said about this.
I think I've muddled what I was trying to say. Hopefully its understandable
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