Quote Originally Posted by Gingercat View Post
The MkII chargers were WW1 era (with the slatted bases) and go for about £3 (3.6 Euros) each quite regularly on 'that well known auction site'. I managed to pick up a job lot of about 18 'phosphated' ones from Australiaicon on the same site several years ago, but I expect the original 'blued' ones are more collectable.
Mark III and IV chargers are also WWI.

Charger approval dates were:
Mark I List of Changes Paragraph 11753 16 Jan 1903
Mark II List of Changes Paragraph 13465 24 April 1906
Mark III List of Changes Paragraph 18973 15 Feb 1916
Mark IV List of Changes Paragraph 19786 30 Oct 1917

The Mark V charger was also from 1918 but was not finally approved due to the end of the war.

Regards
Tonye