Tea Spoon found in estuary

Found this old teaspoon in the estuary, Coromandel Peninsula. New Zealand. Can anyone help with age at all please?

20th century just about covers it. Sorry to be so vague but there is no dating evidence there and Dixons were in business throughout most of the century. The spoon is made of nickel silver, a base metal alloy containing no silver whatsoever.


Thanks so much Phil!