z3610549.jpg is f42v! Your picture obviously is from the Beinecke Rare Book Collection website - I had to rename them all, too...
You can find it - if you'd like to verify - at:
http://highway49.library.yale.edu/Scripts/db2www.exe/PHOTONEG.d2w/INPUT
Just enter "Voynich" as search string, and look for "549" in the results document.
(The last digit varies according to the magnifying level.)