Sri Lanka Coins Primary References

Listed below are the Primary references on Coins that circulated Lanka from recorded Colonial periods to Modern Post Independence coins.
See also the more easily accessible best source reference list.

Dutch Period
Ceylonees Plakkaat boek
by L. Hovy ( academic dissertation )
1991 Published by Uitgeverij Verloren, Alexanderlaan 14, 1213 XS Hilversum, Netherlands.
ISBN: nr. 90-6550-341-2 (set of 2-vol. over 1000 pages)
Comment: Entirely in old Dutch with a 4 page summary in English.
Early British Period.
The Blue Book.
Original with Public Access in the National Archives of Sri Lanka in Colombo
Late British to Modern: 1891-1977
The Annual Report of the Deputy Master of the Royal Mint
Published since 1870. Mintage each year included since 1891, Year on coin give after 1951(?). Foreign mintage not published after 1977 April.
Recent: 1977 Onwards
Database of the Central Bank Sri Lanka (CBSL). Much of the information upto 1985 was published in Sallay's book. Lot of information was lost by CBSL during Bombing in 1996 and recovered based on information obtained from Royal Mint
I obtained a FAX from the CBSL of the database as it existed in 2001 Sept. It reflects coins issued in Sri Lanka, excluding commemorative coins sold directly by the Royal Mint.
In 2003 Oct, I was told it is considered confidential for unknown reason.
This information should be published in the annual report of CBSL.