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The standard bunker periscope type SR-9

Problem:

"There is much fungus opticus germanicus (fog or mould) in the lower part. The prism in the head does not rotate."

Some bunker friends are restoring a Pak bunker type 631. It stands on the so called Fortress island IJmuiden. They have borrowed the periscope and asked me to try cleaning it. The owner also agreed.

Special about this casemate is the fact that the steel plate and the hoisting mechanism for it are still present. It is in such a condition that it can be restored. They also have the steel support for the SR-9, so eventually the periscope will be available for the public to see through. The position of the bunker garantees fine views over the entrance of the harbour of Amsterdam.

The heavy box arrived on May 24 in my home town.