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Caption: War Publications - WWI Compilation 1923 - Article 44
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EXTRACTED TEXT FROM PAGE:
SH.KI \ TION IND RTOiAtil "i SHI. COUH •I tits] FIG. 5.—NAIL SYSTEM PIG. 6.—POST SYSTEM NaU System.—The nail system is shown in Pig. 5. Two rows of ten-penny nails, three inches apart, are driven from each si. Ix4-inch piece of lumber, so that 11 • w i 1 in a I 1 ..., gle 45 < I from vertical. The nails are fc.ur inch. - apart In th« vertical dii Th •"•'• |>la mplirs ccnrer i< tion. T h e l x 4 - i n H , ,•'" f racksare i>l f«»ur i I apart, whirl, allows for all. s.
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