There's a link to a site (in German) under Related Links, below. Note that the coin is really called a "Pfennig". It's the source of the English word penny but Germans only use the term Pfennig (plural Pfennige).
This coin was struck in zinc to save metal for the war, so most of them look pretty bad due to corrosion.
An Australian 1943 Halfpenny looks the same as all other Australian Halfpennies from the 1939 to 1948 period.
They have a George VI head on the obverse designed by Thomas H Paget.
The reverse has the relatively new, hopping kangaroo design by George Kruger Gray, with the words "Australia" around the top, "HALF PENNY" around the bottom and "1943" just above the "HALF PENNY" and under the kangaroos leg.
The composition of the coin is 97% copper, 2.5% zinc and 0.5% tin.
It has a plain edge, weighs 5.67 grams and is 25.5 mm in diameter.
The two possibly unique features of the 1943 Halfpenny is that -
See the link below.
A 1933 British Penny is the same design as all British pennies issued from 1928 to 1936.
The Penny is made from bronze, is 30.81mm in diameter and weighs 9.45 grams.
The obverse has a left facing King George V with beard and moustache with the words - "GEORGIVS V DEI GRA BRITT REX FID DEF IND IMP" which is mostly abbreviated from Latin. The literal definition is - "George V by the Grace of God, King of the British territories, Defender of the Faith, Emperor of India".
The reverse has the seated female warrior Britannia wearing a helmet, carrying a trident and shield, who is personifying Great Britain. There may be minor differences to the figure of Britannia over successive years.
The words ONE PENNY and the year also appear on the reverse.
See the link below for a picture of an almost identical 1931 Penny.
Other than a very few minor differences, the 1914 British Penny is very much the same as all George V Pennies issued from 1911 to 1936.
See the 1936 Penny at the link below.
A 1936 penny has the wheat reverse. The observe or front is the same as modern pennies. The back or reverse has two wheat ears and the words "ONE CENT" between them.
All British Pennies from 1982 to 2008 look pretty much the same as the Penny shown at the link below.
A 1927 British Penny looks very similar to all British Pennies minted from 1911 to 1936, other than the date. See the link below and look for the 1936 Penny towards the bottom.
All British Pennies from 1895 to 1901 are near identical. Pictures of a specific coin are difficult to come by. Frequently you should be able to find one on eBay, but the picture is withdrawn after the coin is sold. See the link below for an image of an 1897 British Penny.
Other than a very few minor differences, the 1914 British Penny is very much the same as all George V Pennies issued from 1911 to 1936. See the 1936 Penny at the link below.
It looks exactly the same as the 2010 or 2012 penny.
The US coin looks very much like a modern US penny
It is silver
0.01
It looks exactly like the US cent.
Pictures of a specific coin are difficult to come by. Usually you should be able to find one on eBay, but the picture is withdrawn after the coin is sold. See the link below.
Cents dated from 1982-present are made out of copper plated zinc. If you strip off the plating either by chemical means or simply scraping it off, the penny will look like silver. Of course, you can also plate the penny with silver. These do not raise the coin's value and its only worth a penny.
There are pictures at the Related Link, below