Revision: 1971_Sackson_275_September 12.jpg

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SUNDAY 12 SEPTEMBER 1971
Old Defender's Day
Fourteenth Sunday after Trinity
255th day - 119 days to come

Thought of another puzzle idea - tentative name HABITAT.
Plastic squares - like box covers - have grooves on their
tops to allow piling of other squares in specific positions.
A base has grooves for starting the piling. Made a layout
using 5-4-3-2-1, for a total of 15 squares.