I'm with the John Day, decd Soldier above, but would like to suggest trying to view the original without enhancements, ie no auto tone or sharpening. You will always loose detail with these turned on in the viewer preferences. It appears that all greys above 50% have been turned to black & all greys less than 50% have been zapped to white. That's lot of nuances! Unfortunately many originals are subject to this treatment when copies are ordered from assorted (but not all) Family History Societies so there's little you can do there (hard/impossible to change scanning policy)
Richard