Original Sniper Publications on ebay

For all those interesred in British sniping there are a couple of nice original publications for sale on ebay UK:

Sniping, Scouting & Patrolling
SNIPING, SCOUTING AND PATROLLING 1940s | eBay

and

Army Infantry Training Manual Sniping War Office 1951
Army Infantry Training Manual Sniping War Office 1951 | eBay

Although Gale & Polden are justly famous for their military "manuals", their products are not official British Army publications but rather "commercial" products.