Prinsengracht The canals served for defense, water administration and transportation. The defenses took the form of the moat and earthen dikes, with gates at transit points, but if not no masonry superstructures. This doc does not constitute an offer to sell, or perhaps a solicitation of a suggestion to acquire, http://bilddee.de/so-pflegen-und-warten-sie-ihren-sackkarren-richtig/