¶ The three types of infantry cap plates issued between 1812 and 1814 are somewhat similar, and all carry the prescribed "name of the corps and number of the regiment." All three specimens of these types are ground finds, two having been excavated after this work was in draft. The first pictured specimen (fig. 8, left) is believed to be the earliest pattern issued. Infantry plates as specified in the regulations were contracted for with William Crumpton late in 1811 or early 1812 by Tench Coxe, Purveyor of Public Supplies, and issued to troop units not later than the early summer.[52] They had been in use but a few months when their generally poor quality of composition forced several regimental commanders to complain to the new Commissary General of Purchases, Callendar Irvine, who had just superseded Coxe, and to request something better. Irvine approved, and he let a contract for new plates with George Armitage of Philadelphia.[53] Irvine's reaction to the matter of the plates is an example of his opinion of his predecessor, Coxe, and Coxe's work in general, which he had observed while serving as Superintendent of Military Stores in Philadelphia. In replying to the complaint of Colonel Simonds, commanding officer of the 6th Infantry, Irvine wrote: "The plates are mere tin, in some respects like the man who designed and contracted for them, differing to him only as to durability ... I am contracting for a plate of decent composition to issue with your next year's clothing."[54] [Footnote 52: Bill dated February 24, 1812, from William Crumpton (Records AGO).] [Footnote 53: Letter dated November 8, 1812, from Irvine to Colonel Simonds (Commanding Officer, 6th Infantry); letter dated November 3, 1812, from Irvine to Colonel Pike (Commanding Officer, 15th Infantry); and letter dated November 23, 1812, from Irvine to Armitage. These letters are in Records AGO.] [Footnote 54: Letter from Irvine to Simonds cited in preceding note.] The first pattern carries the "name of the corps and the number of the regiment," the 15th Infantry, commanded by Col. Zebulon Pike who was one of the officers who complained to Irvine about the poor quality of cap plates. The specimen is of tinned iron and the letters and numerals have been struck with individual hand dies.