Would need to see the markings in order to determine this. You're free to send photos to the email address listed on my bio page if you should so wish.
No way to tell from a serail number alone- and you DO realize there is more than one model of Enfield rifle?
Many books have been written on the Lee-Enfield. Good luck.
It will be marked on the weapon itself as to who made it.
1918
Jan 1919
There were 4 different .303 Enfield rifles made for the military, and others for civilian use. The link below will take you to an article of serial number blocks for different rifles.
Seerial numbers are not unique to only one rifle. The year of manufacture is frequently stamped on the metal band at the wrist, or the left side of the receiver, depending on which MODEL Lee Enfield you have.
$50-400 depending on condition and Mark.
There have been several rifles made as military rifles in caliber .303 British (.303 Enfield) The most common have been the SMLR (Short, Magazine, Lee-Enfield) known as the No 1 Mk III, and it successor, the No4 Mk I. The link at the bottom of the page will take you to a website on surplus military arms, Scroll down the left side to the rifle you want, and it will take you to an article on that rifle, with photos. Can't tell you much from a serial number alone. ENGLAND is an import requirement, telling you which country it was made it.
The serial number 4279990 is a partial serial number for this rifle. To determine the date the rifle was manufactured you need to provide a complete serial number that begins with letters.
You have listed the model number of your rifle,not the serial number.
The rifle had the serial number C 2766.