9 September 1993
used Single, small even margins all round, with red cancellation. R.P.S. Certificate (1966), as pale bright blue. In our opinion the stamp falls between the shades of blue and deep bright blue and we have included it in the deep bright blue group.
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In the 1960s Robert Indiana made LOVE, a work that seemed to embody 1960s idealism. But there was also a darker side to this painter of the American dream
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