A discussion of the cards known to carry the EF number, their significance and samples of these cards.
Cross-reference of the snapshots carrying EF- numbers with the series FD- and FPh-
Cross-reference of cards of the series FD- (...), FD-, FPh-(...) and FPh-
Cross-reference of cards of the series FD-, FPh- (...), FPh- and CGF-
(Note that the series CGF- are the subject of the series published between 1906 and 1910 and are covered by their own website catalogue - ‘The middle Years’ ).
This is an estimate of values of these cards