1 Anna 1950

Non magnetic, 3,90 G, diam. 20.55-21.08 mM (depending on its position in the measuring instrument), thickness 1,60 mM.

No significant damage (600 psi). And no mint mark!!! 

Fake?  Error? Toy (joke)? Anything else? 

Struck at the Calcutta Mint.

Aidan.

A fantastic new. And could you give a link to a catalogue that lists 1 Anna 1950 made in Calcutta?