English to Arabic Law/Patents Real Estate Real State provisions

هذا في سياق وصف لحدود ملكية معينة، أتمنى أن تفيدوني بمعنى هذا الاختصار(له علاقة بالسجلات)
وأيضاً معنى Corps of Engineers survey pin
Thence continuing with the boundary of Corps of Engineers property as follows:
South 63°47'00" West, 210.06 feet to a Corps of Engineers survey pin;
South 16'21'50" West, 559.51 feet to a Corps of Engineers survey pin;
South 29°59'50" West, 1,153.26 feet to a Corps of Engineers survey pin;
North 71°40'00" West, 1,118.16 feet to a Corps of Engineers survey pin;
North 82'09'09" West, 485.95 feet to a bronze cap set in stone at a southeasterly corner
of Claude Bonds property of record in Deed Book 7785, Page 292, R.O.D.C.;