I've bought the German and Brazilian front and rear Mets...
There was a noticeable size difference in the Brazilian rears, Met stated that they have corrected this but I can not confirm.
The Brazilian 150 was more narrow than my German 150.
This was noted by measuring the gap to the drive belt once mounted and properly inflated.

Note: I've got a foto of them sitting side by side, German and Brazilian 150's...

 

they do run a good bit skinner, you need to go up one width

 

Would you mind posting the foto in your galley?

How can I tell if I have the Brazilian or the German tire?

 

"Made in 'X country'" is printed on the sidewall.

Cheers!
[sm=icon_rock.gif][sm=icon_rock.gif][sm=icon_rock.gif]

 

I didn't measure, but the 150 MetzI put on my FXDC to replace the 150 Dunlop reardoes look skinnier. The tread profile is different, though, with a more pronounced curve in toward the sidewall. I figured it was this different shape that made them look a bit skinnier. I replaced the front at the same time and it looks to be pretty much the same width as the preceding stock front Dunlop. Either way, I'm very happy with the improvement in handling these tires made to my bike - faster turn in, virtually no groove tracking, solid grip on all road surfaces that I've been on, etc..

 

Here it is...Brazil on the left, German on the right, both 150's, same exact numbers/labels.