Go here...
http://www.idealboilers.com/century_of_boilers.html
Hover over 1990s and read the following...
"The original Classic was launched in 1991, and the Classic SE (which is the model depicted) was launched in 2001 and was an upgrade of the original Classic.The Classic SE is a tried and tested boiler which offers to this day unprecedented standards of reliability due to its simple design and engineering. This has resulted in appliances that are easily installed and that require minimum servicing and maintenance. It is the only Wall-Hung cast iron boiler with an RS offering...."
Does 1907 refer to 19th July or the early part of the last century?
Other information available at...
http://www.homeheatingguide.co.uk/efficiency-tables.php
Peccavi
March 2009