Credits given to all of you, Gentlemen.
Indeed the chain links are hand-welded, bt not the end ones; which later made some handcuff expert out there detrmine this was a replacement.
He also said this is a 1930-50 example which, if being true, is rather frustrating for me, as i have bought (& paid) this thing based on its apparent (and publicized) antiquity. I am left with the replacement chain being an older part .

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... still i think the said expert was rather skeptical and too quick in judging; the grips definitely look older than from the 20th century.
Yes Mark, early 20th century versions of these 'come alongs' were also used in the States in some areas, as i have read after some general searching.
No Robert, i first typed the text and then i put the cuff on her wrist; still only on the next day i afforded to submit the post, pressing the button with the less damaged finger .
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