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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3180 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3190 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3200 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3220 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3230 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3240 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3250 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3260 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3270 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3289,50 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3300 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3310 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3320 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3330 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3340 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3350 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3370 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3380 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3390 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3410 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3420 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3430 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3442,25 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3460 in ink and colored pencil on graph paper.
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Color drawing of excavation progress (Longitudinal Section) of kilometer point 3470 in ink and colored pencil on graph paper.
