The WWI .303 Brass Oil Bottle, produced by the Royal Small Arms Factory (RSAF), is a historic piece of military equipment used to maintain the Lee-Enfield .303 rifles. Made from durable brass, this oil bottle features a sleek, cylindrical design with a screw-on cap, ensuring secure storage of gun oil. Marked with the RSAF stamp, it reflects the high standards of British military craftsmanship. Essential for rifle upkeep, the oil bottle prevented corrosion and ensured reliable performance in the field. Collectors and history enthusiasts value this oil bottle for its authenticity and as a tangible link to World War I-era military gear