"At the request of the Office, Chief of Ordnance, one Chinese 60MM HE mortar shell was shipped to this Arsenal by Picatinny Arsenal for metallurgical examination. The shell was received in the inert condition with the fin assembly and powder increment clip attached. The shell was identified as follows: 60MM Shell, HE, for Mortar (Chinese) FMAM 2276. Picatinny Arsenal Technical Report No. 1846 contains the results of a general examination of the complete shell. The shell was visually examined to determine significant design features, after which dimensions were measured for the preparation of a dimensioned drawing. A longitudinal slice was cut through the center of the shell for a hardness survey and macroetching. Specimens were obtained for microscopic examination, chemical analyses, hardness, and tensile tests, from the shell body and fin assembly."

Object --Summary -- Conclusions -- Introduction -- Test procedure -- Data and discussion -- Visual observations -- Design features -- Metallurgical characteristics -- General considerations -- Appendix A Letter file ORDBB-TE 386. 3/17-12, ORDBE 386. 3/593.