Recently acquired Enfield no4 mk 1/3 markings question : r/LeeEnfield

Are these genuine No.4 Mk.1 Sniper markings?

Lee–Enfield - Wikipedia

Lee-Enfield Rifle No.2 Mk.IV* and .22RF No.1 Mk.III

Lee–Enfield - Wikiwand

Lee–Enfield - Wikipedia

Lee–Enfield - Wikiwand

What were the disadvantages of the Lee-Enfield rifle? - Quora

Lee–Enfield - Wikiwand

New Enfield No4 Mk1* LB Markings Help : r/LeeEnfield

No 4 Mk.1 Markings help. : r/LeeEnfield

Lee–Enfield - Wikipedia

Lee–Enfield - Wikipedia

What rifle replaced the Lee-Enfield? - Quora

In need of Help identifying this No.4 Mk.1 : r/LeeEnfield

No4 mk1/3 information on markings