A Greek watch reseller and jeweler sold this item in his jewelry store circa 1936-1939.
It looks like an early vehicle tachograph, but is it? Is it maybe watch/clock related?
A punch card perhaps? Something to mark/stamp time?

I've uploaded a 1930's tachograph from the US, found here: http://www.worthpoint.com/worthopedia/vintage-1930s-tachograph-servis-1778457229

Looks similar, but I am not convinced it's a tachograph.
Anyone perhaps knows and can help?

 

Have seen these used in Autoclave,s, fumigation chambers and refrigerated container records. Modern iterations have date and temperature but older ones like the one above were used for treatment records for government treatments to record time under treatments. Fumigation records have a need for printed proof of time under fumigation and cards like above were dated and signed by the fumigator

Below are modern refrigerated container ones that are used

 

These are used in many industrial processes - the plant I worked at would use it to record things like flow rates of coolant (water soluble cutting fluids) through the plant, steam generation in the winter, as well as air pressure in the powerhouse from all the compressors. The latter system I replaced with a modern digital monitoring system to better control pressure and modulate compressors, monitor temperatures, moisture content, etc. - saved big bucks as compressed air is the most expensive utility typically in a manufacturing plant...

 

Thanks Standy and Archer!

Someone suggested that it might be a pigeon chart recorder and running with all this information I found something interesting, here: http://www.ebay.com/itm/Vintage-Wat...se-Hahns-US-Patent-1891-Germany-/361636919647Purchases made through these links may earn this site a commission from the eBay Partner Network

So, definitely a chart recorder.

For a watchman clock in the late 1930's? Or for pigeons?

(photo of pigeon chart recorder from https://lucyaudioprojects.files.wordpress.com/2012/09/lucystevens_pigeon-clock-graphsmaller.jpg )

 

Puzzle solved!

It's indeed a watchclock's circular chart recorder (i.e, paper dial).

Identical item found here (http://technoseum.faust-iserver.de/...pos=1&erg=a&hst=1&rpos=sammlungsdatenbank.png)

Many similar items found here: http://technoseum.faust-iserver.de/doerg.FAU?sid=70BFC2EF1&dm=1&rpos=Kontrolluhrensammlung+Schmid

Thanks to Michel Viredaz of Chronométrophilia, Association suisse des amateurs d'horlogerie, for confirming the find.