1958 United Kingdom 1 One Shilling Coin

Copper-nickel (75% Cu, 25% Ni)

Obverse:

Young laureate bust of Queen Elizabeth II right, legend around.

Note: no 'BRITT:OMN'

Script: Latin 

Lettering:
+ ELIZABETH·II·DEI·GRATIA·REGINA
M·G·

Translation: Elizabeth II by the Grace of God Queen 

Engraver: Mary Gillick

Reverse:

Crowned English shield of arms dividing date, legend above, denomination below.

Script: Latin 

Lettering:
FID DEF
1958
W G
ONE SHILLING

Unabridged legend: Fidei Defensatrix 

Translation: Defender of the Faith 

Engraver: William Maving Gardner

Royal Mint (Tower Hill), London, United Kingdom (1810-1975)

Comments:

House of Windsor (1917 to date), Elizabeth II (1952-2022), Pre-decimal issues (1953-70).

The original weight of these coins was 2/11 troy ounce (87.3 grains). Under the Coinage Act of 1946, the composition changed from .500 silver to .750 copper/.250 nickel but the weight remained at 87.3 grains.