"We also only include items which have clearly been stolen, not just mislaid," Mr Kind said.
Among the items, which have been donated by designers and manufacturers, are furniture, flooring, lamps, textiles, jewelry and cooking utensils.
Most of the plastic litter comes from single-use items, which have been inadequately disposed of and not recycled.
The items, which have never been exhibited or offered for sale before, will be auctioned in Los Angeles on November 11.
Details were announced on Monday of a nine-month exhibition of all things Elvis at the 02 showing many items which have never left the Presley mansion in Memphis, Tennessee.
Eliot's letter is one of more than 300 items which have been digitised by the British Library, a mixture of drafts, diaries, letters and notebooks by authors ranging from Virginia Woolf to Angela Carter and Ted Hughes.
The ban on trade in "dual-use" items, which have both military and civilian applications, can also have unintended consequences; he pointed to a major health project, backed by a US institution, which struggled to import the laboratory equipment it needed.
However, the sale items which have caused the most controversy are the personal gifts given to both Lady Thatcher and her husband Sir Denis by friends and the collection of official papers and private notes, which it is felt should go to the Thatcher archive at Churchill College, Cambridge.
STOCK level transaction, which finds the recently sold items, which have got a stock below threshold.
