In the order administration dated 26 May 1886 was the
order for account of the Dutch Department of War described as the delivery of
30-15cm of ƒ 546 each, totally ƒ 16.380 and 30-10cm mortar carriages of each ƒ
290, totally ƒ 8.700. Totally contracted price ƒ 25.080 minus fine of ƒ
1.522,80=ƒ 23.557,20. Building costs totally ƒ 29.720,09 (material+expenses
contract ƒ 11.345,65, labour ƒ 11.567,44, 60% expenses on labour ƒ 6.807)
resulting in a loss of ƒ 6.162,89.
Source
Archive Kon. Mij. De Schelde, Vlissingen, Netherlands 1875-1970
(Municipality Archive Vlissingen T.214.1216).
