Simplified Design of Structural Timber, by Harry Parker, M.S.  ( Professor of Architectural Construction, School of Fine Arts, University of Pennsylvania).  3rd Printing published in 1950 by John Wiley & Sons, Inc. of New York.

Condition:   Sound binding.  Sturdy flexible covers. Fading to lettering on front board and spine.  Light wear to top and bottom of spine.  There is a section of folded outer bottom page tips which also have some tiny tears.  Writing and a name in pencil on front pastedown as pictured above.  Sporadic light pencil underlining in the text, but it is overall minimal.  8"  x  5" with 218 pages.