(From: coppers@teleport.com) "A salt water or vinegar solution sprayed on the metal and sealed with an open container of ammonia will produce a blue patina.
(A salt water or vinegar solution; sprayed; on the metal) (A salt water or vinegar solution; sealed; ) (A salt water or vinegar solution sprayed on the metal and sealed with an open container of ammonia; will produce; a blue patina)
A salt water or vinegar solution A salt water or vinegar solution A salt water or vinegar solution sprayed on the metal and sealed with an open container of ammonia
sprayed sealed will produce
on the metal
a blue patina