Brittish made Lee Enfield rifles went through many changes up to and including the No4. The No4 was made close to the end of WWII. The Brittish battle needs shifted to jungle warfair after WWII. The No4 was not well suited for the jungle. The No4 is not very common but is not very rare either.
No such rifle. The Lee Enfield was made in caliber .303 British, not .308. The closest thing would be the Ishapore 2A or 2A1 rifle, made in caliber 7.62 NATO. While similar the .308 Winchester, it is not the same, and .308 should not be fired in a 7.62 NATO rifle. The Lee Enfield "sniper" rifle in .303, if original and complete (and not an aftermarket conversion) may sell for around $1500, depending on condition and accesories. There are many fakes on the market- be sure of what you are buying.
The 'E.Y'. rifle was named after Sir Ernest Youlle who invented it, or more accurately, adapted it from the standard Lee-Enfield rifle
No, it is not. It is roughly comparable with the Springfield 30-06 or the British Lee Enfield .303
Many books have been written on the Lee-Enfield. Good luck.
1917 lee enfield
Can still be found in use around the world
See the link below to a good Wikipedia article on the Lee Enfield. There are several DIFFERENT .303 Enfield rifles.
Entire books have been written on Lee Enfield Rifles. You'll have to narrow it down a little. A Wikipedia search for SMLE will help you get started.
£275 at least
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.
See the link below for a short treatise (with photos) on the various Lee Enfield oilers.
It will be marked on the weapon itself as to who made it.