 89-20 sketch-a September Thunderhead
|  89-20 sketch-b September Thunderhead
|  89-20-c September Thunderhead
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 89-27 sketch-a San Giminiano through the Trees from Casa Pescilla
|  89-27 sketch-b San Giminiano Through the Trees
|  89-27 sketch-c Field Study San Giminiano through the Trees
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 90 painting plans
|  90 sketch-a NASA Verticle Assembly Building
|  90 sketch-b NASA Verticle Assembly Building
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 90-04 sketch-a Field Study Taos Mountain
|  90-04 sketch-b Field Study Taos Mountain
|  90-05 sketch Taos Mountain at Sunset
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 90-23 sketch-a Lisa in the Chamisa
|  90-23 sketch-b Lisa in the Chamisa
|  91-02 sketch-a Line Squall right
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 91-02 sketch-b Line Squall center
|  91-02 sketch-c Line Squall left
|  91-05 sketch-a Early Spring West of Socorro
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 91-05 sketch-b Early Spring West of Socorro
|  91-10 sketch-a Field Study Schloss Winkel Merano
|  91-10 sketch-b Field Study Schloss Winkel
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 91-11 sketch-a Lago de Guarda
|  91-11 sketch-b Field Study Lago di Guarda
| .jpg) 92 sketch Italy Temple of Poseidon (Paestum)
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 92 sketch Italy Cerveteri-a
|  92 sketch Italy Cerveteri-b
|  92 sketch Italy Herculanum-a
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 92 sketch Italy Herculanum-b
|  92 sketch Italy Ostia Anitica Rome
|  92 sketch Italy Ostia Antica Rome
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 92 sketch Italy Paestum-a
|  92 sketch Italy Paestum-b
|  92 sketch Italy Paestum-c
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 92 sketch Italy Pompei-a
|  92 sketch Italy Pompei-b
|  92 sketch Italy San Galgano
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 92 sketch Sicily-a
|  92 sketch Sicily-b. Taromina
|  92 sketch Sicily-c Taromina
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 92 sketch Sicily-d Taromina
|  92-12 sketch Model for California Suite triptych
| .jpg) 92-14 sketch City Sunset (1-86 sketch)
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 93 sketch-a live oak
|  93 sketch-b live oak2
|  93 sketch-c live oak
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 94 sketch airplane
|  94 sketch of our house at 237
|  94-04 sketch-a Utah Suite
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 94-04 sketch-b Utah Suite
|  94-04 sketch-c Utah Suite
|  94-04 sketch-d Utah Suite notes
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 94-04 sketch-e Utah Suite notes
|  94-09 sketch Field Study Off Mather Point Grand Canyon
| .jpg) 94-09 sketch-a Off Mather Point (1972)
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.jpg) 94-09 sketch-b Off Mather Point 1972)
|  94-12 sketch Field Study Zoroaster
|  95 notes on AZ and UT triptychs
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 95 sketch
|  95-04 sketch center panel left and right Wyoming Suite
|  95-04 sketch Wyoming Suite
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 96-05 sketch-a Snow at La Cueva
|  96-05 sketch-b vegetation
|  96-05 sketch-c vegetation
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 96-05 sketch-e
|  96-05 sketch-f
|  96-05 sketch-g
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 96-07 sketch Field Study Evergreen Forest Yellowstone
|  96-08 sketch Field Study Yellowstone Falls left
|  96-08 sketch-a Field Study Yellowstone Falls
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 96-08 sketch-b Field Study Yellowstone Falls
|  96-08 sketch-c Field Study Yellowstone Falls
|  96-08 sketch-d Field Study Yellowstone Falls
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 96-08 sketch-e Field Study Yellowstone Falls
|  96-08 sketch-f Field Study Yellowstone Fall right
|  97-01 sketch-a Sunset at San Ysidro a
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 97-01 sketch-b Sunset at San Ysidro
|  97-02 sketch-a Sunsets Last Gleaming left
|  97-02 sketch-b Sunsets Last Gleaming right
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 97-03 sketch-a Sundown at Algodones
|  97-03 sketch-b Sundown at Algodones
|  97-03 sketch-c Sunset at Algodones
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