One-man submarine lifted in IJmuiden harbour

About

Salvaging the wreck of a German miniature submarine from the Second World War, found on the bottom of the harbour of IJmuiden. SHOTS: - Shots from a small sailing boat, in the harbour mouth of IJmuiden, heading towards a dredge; - ext. dredge; ext. of boat that is moored above the location of the wreck; - on the boat, a diver is helped into a diving suit after which he goes into the water; - with thick hoses, sand is sucked from the seabed from one side of the boat and sprayed away on the other side of the boat via a pipeline; - a floating sheerlegs slowly hoists the submarine above the water and lets it down carefully on the slope of the quay; - photos of details of the U-boat; a.o. air inlet of the so-called "snorkel". \snuiver(?).

Human-made No record of this work says a model made it. What this means.