Shown in the 1969 catalogue, these are pattern Number 6 Architectural Slabs and measure 7" x 3".
| Sold in August 2000 for £73.50 this is a Number 6 slab in Twilight. | |
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| Sold in April 2001 for $183 this is a Number 6 slab in Ruby on Flame. | |
| Sold in December 2001 for £41. |
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