Item 25686 - Restricted Transfer Drawing, Harbor Defenses of Portland, Battery 201 Item 25686 - Restricted Transfer Drawing, Harbor Defenses of Portland, Battery 201 Contributed by Maine Bureau of Parks and Lands Item 25686 Zoom 11411px x 7188px - 38.0"w x 24.0"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Bureau of Parks and Lands Image Info This drawing shows the electrical layout for Battery 201, a facility for Portland Harbor's defense, drawn in 1946. Show Details