Bike Mielec

I'm not too sure how you are asking.

they do seem to be the same as the ones branded as sturmey archer (and umteen other brands)

they look something like this http://robertobicicletas.com/ebay/campagnol-1315604161-29298.jpg

103mm is length to get track chainline with the chainring on the outer, yes.

took the shittest pic possible #androidcameraphone

So which BB is it 103 as the lip doesn't look big enough for a chainring