Dura ace 5 speed freewheel

[Sorin]

Hub is not marked , but from my research if that ring is present between threads and flange they could be imperial. Also, no marking on Shimano UG frewheel...assuming the quality of non damage threads on the hub, they must be a match . I am from Brasov , Romania, you know...near Dracula Castle

 

[mdvineng]

I have been there, when I worked in Bistrita, setting up a business with a local engineering company. Sadly it all fell apart due to an idiot director in the UK.
The sprocket spacing Centre to centre is 5.75mm. Ultra is 5mm and 5.5mm for other Suntour. https://www.sheldonbrown.com/suntour-freewheel.html

You might want to look closer to home for the 5 speed, Poland has a lot of quality cycling goodies lying around?

 

[Sorin]

Maybe it has , but idk where to look , i am new to vintage restoring .

 

[mdvineng]

Try Ebay.pl