Pattern on both sides of wooden comb W 44 from Geometric Well I and restored pattern ... Helen Besi ... Torn Dirty Repaired Faded Heavy Tracing Paper Drafting Ink ... 1968
Section ΒΓ: blown up from city plan 1:500 and adjusted to expropriation plan, no survey points available ... Helen Besi ... Grid for ΒΓ (low priority). Heavy Tracing Paper Drafting Ink ... 1969
Section ΒΔ: blown up from city plan 1:500 and adjusted to expropriation plan, no survey points available ... Helen Besi ... Grid for ΒΔ (low priority) Heavy Tracing Paper Drafting Ink ... 1969