Here they are Itchy as per your request
http://members.optusnet.com.au/~avan..._1904_crop.tif
http://members.optusnet.com.au/~avan..._1908_crop.tif
It should be obvious which is which.
I used ten darks and thirteen bias frames to make the masters for frame 1904. Both frames have the same conditions 7min exposure at an ISO of 1000. 1904 ICNR off, 1908 ICNR on.
Bert