Supply bulletins. 11-100-26. Serviceability standards for trays PH-154, PH-155, PH-157, PH-158. PH-158A, PH-160, PH-161. PH-161A, PH-164. PH-164A, PH-166, PH-166A, PH-170, PH-173, PH-173A. and PH-18; May 1945.

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