The C Stock,consisting of C69 and C77 stock, was a used on the Circle, Hammersmith & City and District lines between 1970 and 2014. The trains were maintained at Hammersmith Depot for their entire lifespan of 44 years.
The C stock were replaced by S7 Stock between January 2013 and June 2014. A farewell tour for the stock took place 29 June 2014.
This is version 3 of the C stock, and features highly detailed and realistic 3D cab and exterior view.
Whilst these add ons are available for free, they cost the developers real money to make. Websites and bandwidth are not free, neither is the computer equipment used to make these downloads.
I'd really appreciate if you could spare the money for a donation. £1.50 is the price of a single journey on the London Underground network, and you can donate as many "journeys" as you like. It's extremely unlikely developers will ever break every small donation will go towards creating more content and covering website costs.
You can also donate by sending a PayPal payment to firstname.lastname@example.org.