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[Agora Drawing] PD 541-a (DA 60)

Section plan of area Δ in 1932 ... Charles S. Spector ... f Fragile Graph Paper Drafting Ink Pencil ... 1932 ... Δ

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[Agora Drawing] PD 541-b (DA 61)

Plan of section Δ in 1932, showing little or nothing additional ... Charles S. Spector ... Filed with PD 541-2 f Fragile Graph Paper Pencil ... 1932 ... Δ

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[Agora Drawing] PD 542 (DA 62)

Plan of section Δ in 1932; southeast corner ... Charles S. Spector ... f Fragile ... 1932 ... Δ