Count the full set and retained part before describing the crop. Distinguish an added label from proof of its claim. Use the supplied key even when it differs from a previous worksheet. Preserve the limits of time and place, and choose new evidence relevant to the exact claim.
Worked example
An undated sketch shows six lockers, four shut and two open. A crop keeps the four shut lockers, omitting two. A caption added in 2010 claims a 1980 visit, without support. A plan uses triangles for existing sheds and circles for proposed sheds. Neither a copied caption nor a proposed shed is proof of the claimed event or completed work.
Two invented garden records
Record A is an undated drawing of nine benches. Benches 1-5 are occupied; benches 6-9 are empty. A crop keeps only 1-5 unchanged. No other benches or times are shown. A label added in 2002 claims Garden festival, 1972, with no supporting source. Three notices copy it. Record B is a 1964 east-garden proposal, not to scale. Circles mean existing fountains J, K and L; triangles mean proposed fountains M and N. The dotted line means a proposed path. Only the east garden is covered, not all gardens. No completion or opening records are supplied.