Those Morris Oxford / Hindustan ones are quite similar (didn't pinin have a hand in it too?) apart from the hump around the exposed axle. I saw genuine used ones on Ebay.com for USA$2000.....
The fiat Dino ones are identical apart maybe from being a bit shorter - easy and affordable to cast them a bit longer in sand then polish then chrome - all depends on how much authenticity you're after.
cheers
Ross
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