Is this a Biber periscope?

[FJ1]

Biber 90 periscope?

[FJ1]

.

[Mikedenmark]

Greit.
Looks right to me.
The top design, the marks on the tube, etc etc..

Congrats, both to the item and the ID.

No manufacture markings anywhere?
Maybe you can magnify the top in the photo´s? Still, it looks right.

[Mikedenmark]

I sampled the first photo from a Youtube Video.
It is the periscope in a Seehund midget submarine.
2nd photo. Same type of periscope, only photographed in 1945.
3rd photo. Seen from the side. Still Seehund

Same concept, but different details.

[Mikedenmark]

Evidently, some of us have too much time on our hands...
https://www.youtube.com/watch?v=CquMxRVtSZw
enjoy.

[Mikedenmark]

Sorry about that last post. I have always been amazed that model subs can be radio controlled, when 1:1 subs needs ULW for radio transmissions. I suppose bandwidth and distance are major factors in communications.
What surprised me even more was, that firing torpedoes from models is done. Looking into Youtube, the examples are numerous. I am impressed.

I managed to find a very few more photo´s of the Biber periscope. See below.
It appears it was fitted with a circular ocular protection, and behind that, a large rubber ring. I have seen similar large rings used on large binoculars, but I don´t know why they are needed. To keep the ocular protection from sliding off perhaps?

Regarding earlier links and photo´s in this thread. According to one video linked here, the periscope of the seehund could be used to check the sky for airplanes. This suggest that the lever behind the Seehund periscope is for tilting a mirror or a prism. Pretty obvious all along but at least one source confirms such a function was there.

The photo with the junior officer looking back, is from a Seehund, not a Biber. He is turning to give an order to the helmsman in the boat. So, not Biber.

The best photo below, is the first, the rest are blurry. The 1st. is british, taken down into a captured Biber.

[Mikedenmark]

There was a reason for my interest in this periscope.
Below are more photo´s of a similar one.

Of note:

No serial number visible anywhere.
No makers code, or name, anywhere.
Long tube is aluminium.
Small bud below the lower angled part. For moisture absorbtion or pressure equalizing ??
Coated ocular lens.
Lower casting is different from the one that started this thread.
Securing flance lock around the tube, just above the bottom angle part.
(My guess is, this was the sealing point for the periscope.)
(( Question is, how did they mount it at all. ?? From below? Sufficient inside height to do that ?))

Unfortunately, it has a scratch on the top front panel.
Otherwise, looks fairly unused. Comes from a place where there were german midget subs. Only, no Biber´s, as far as I know. Earlier models only.

[Mikedenmark]

The periscope very likely originated where the midgetsubs in this movie was photographed.
https://www.britishpathe.com/video/v...war+activities

The german officers shown entering a large vessel was filmed in Copenhagen. At Langelinie.

The midgets subs shown were assembled at Lynæsfort in 1945, where this film was made.
Google map coordinates
55.947670, 11.857082

The navy officer with a dark uniform and bright belt, that at one point enter one of the subs, is a danish navy officer.
The midget subs were assembled there for later dispatch and/or scrapping.
Some of them came from a location on a lake: Arresø.

[Mikedenmark]

Going for the Molch, I found this photo:
https://www.google.com/imgres?imgurl...MygEegUIARDWAQ

At least the type has been used like this on the Molch boats.

Another one, probably the same boat:
https://www.scalenews.de/wp-content/...lkaround-3.jpg
Same bottom casting as the one starting this thread.

I have to check, if anyone has ever heard of Bibers or Seehunds here in Denmark. In 1945, the Molch must have been pretty obsolete allready.
My guess is, the one I have shown is an earlier type. The more crude model is the later, IMO.

And reviewing the Photo´s I found of the Seehund, it seems to exist in 2 versions, one with, and one without, side handles. The one without is likely to be the same as those for the Molch/Biber.
The british navy made an assessment of these boats, so, there is probably interior photo´s somewhere out there.