1969 Engelhard London British Hallmark Collection. Set of (4) 100 gram .999 fine Silver Ingots.Includes one ingot each for London, Birmingham, Sheffield and Edinburgh, each featuring the appropriate hallmark signature for one of the refining locations. A rare and very early set, aggressively collected by silver bar enthusiasts, still in its original snap-lock plastic case with purple-felted insert. Although 25,000 sets were originally intended, production is estimated to be only about 5,000 sets, with many of those disappearing in the great silver melt of the 1980s. Originally offered at $79.95 for a complete set, today these sets are rarely seen, and typically sell for well over $1,000. The ingots remain essentially as issued, the case complete and intact, but showing some handling marks.