1. How many dipper dredges did the Canadian Vickers Company build for the government since the year 1926?
2. Were they registered after they were delivered ?
3. If so, at what port?
4. By which department were the contracts awarded ?
5. What is the total amount paid for all the dipper dredges ordered by and delivered to the government since the year 1926?
Subtopic: PURCHASE OF DIPPER DREDGES