Chester year a mystery

[geoprink]

Have this bracelet and the thing is the date has me baffled.
I have tried to look the year up but no hallmark dates for the letter J.
Anyone have any ideas?

[dognose]

Hi,

Welcome to the Forum.

The year of assay was 1959, the maker, Joseph Smith & Sons (Birmingham) Ltd.

Trev.

[geoprink]

Hi,

Welcome to the Forum.

The year of assay was 1959, the maker, Joseph Smith & Sons (Birmingham) Ltd.

Trev.

Hi Trev, thank you very much for your help.