By moving the slider (top right) you can zoom in on the map. To zoom in even more enter a larger number in the % box (eg 400).
You can drag the map around to see the whole area, or use the horizontal and vertical slide bars.
PLAN OF NEWPORT MON
"A Guide To Newport, Mon. Being No 113 of The "Borough" Guides. Printed and Published by R. H. Johns, Ltd., Newport"