topic

• Locks (Hydraulic engineering)2
• Blockhouses1
• Foundries1
• Houses1
• Pulp mills1

collection

• Detroit Publishing Company postcards4

place

• Sault Ste. Marie (Ont.)4
• Sault Ste. Marie1

genre

publisher

• Detroit Publishing Company4

division

• Wallach Division: Photography Collection4

type

• still image4