Official 1907 Jamestown Exposition Series

This series is numbered from 1a to 195 (with an extra card 46.5).

All I've been able to find in the way of description is the online catalog of the University of Virginia Library which can be accessed at http://www.worldcat.org and searching "Jamestown Amusement Vending Co", that splits cards into categories of churches, exposition buildings, revolutionary war, civil war, etc.

I've picked up about 95% of the cards from the online list. However, there are breaks in the list for the following cards:

70
143-146
171-172

Does anyone know if cards exist for these numbers and, if so, what they are? Many thanks.