This is?

How intriguing!

Thank you, see my note to Keith below.

Eine Sonnenuhr?

Very close, Stephan, see my note to Keith below.

Excellent capture!

Admired in: www.ipernity.com/group/tolerance

Thank you, William.

most beautiful find
Wish you a peaceful week!

Thank you, Annemarie.

No idea !!

Thank you, Jaap. See my note to Keith below.

Come dit le proverbe Français, je donne ma langue au chat.
Bonne et agréable journée.

Thank you, Malik, see my note to Keith below.

Well weathered and possibly outdoors, otherwise no idea George,
A fascinating capture !
An idea for a group here, Guess the object ;-)))

Thank you, Roger. See my note to Keith below. The idea of the group is interesting, do you think we could find enough improbable objects to make it work?

Some could say to foresee possible outcomes of future events... ?

A good thought, Isabel. :-) See my note to Keith below.

Wow,welch tolles Ergebnis zu gemacht hast lieber George,das schaut richitg klasse aus :))

Wünsche noch einen schönen Tag,liebe Grüße Güni :))

Thank you very much, Guni. Keith (below) has the answer.

Das ist ja interessant lieber George,vielen Dank dein Feedback dazu :))

Wünsche noch einen schönen Nachmittag,liebe Grüße Güni :))

Awesome capture, but no idea what it is...lol

Thank you. See my note to Keith below.

A "world upside down" adjuster... ???

Very close, Udo. :-) See my note to Keith below.

Superlative object and image, George!

Thank you, Judite.

Awesome reflection. Unfortunately, no idea what the object is.

Thank you, Don. See my note to Keith below.

…excellent, George !

Thank you, Ulrich.

Meteorologists use them to capture the number of hours of direct sunlight each day, as well as its intensity.

A cracking shot George with spot on focus as depth of field..!!

Full points, Keith! This is indeed a Campbell-Stokes Sunshine Recorder, as was being used by our Weather Bureau at the time. By way of detail for those interested, a strip of special blue cardboard, with markings for hours, was inserted every day (visible in the image). As the sun moved around, when it was shining it burnt a mark or track on the cardboard. At the end of the day the time was measured against the hour markings, to give the duration of actual sunshine. Technology has since moved on to electronics!

Thanks George...............technology may have moved on, but it doesn't always look as beautiful as this!

Thank you for your comprehensive explanation,
I just thought, that this glass bulb would focus the sun rays
and could burn a hole into the material below.
But I could not imagine what the purpose of this
device should be!

...fabulous! :-)

A gadget to prove that the earth is round? ;-)

Very close, Edna. :-) See my note to Keith above.

Indeed, George. Very close ;-))) So I'll get half of a free * for my latest image then? ;-)

This is… a fabulous shot of a sunshine recorder or heliograph, George!

Thank you, it is indeed - unfortunately Keith gets the * for being first. More details in my reply to him.

a fabulous copy!!

Thank you very much, Gabi.

de glazen bol

Close, Fred. :-) See my note to Keith above.

An ingenious device and attractive photo with the upside down reflection! Today's electronic stuff may be more advanced but when power goes off you're left high and dry;-)