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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3780 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3790 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3831 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3840 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3860 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3910 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3920 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3950 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3970 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3990 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4680 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4750 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4780 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4800 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4810 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4820 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4875 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4880 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4890 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4900 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4910 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4920 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4930 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4960 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 4970 in ink and colored pencil on graph paper.
