ji

This Junkers J.1 586 was discovered at the German airfield at Villers-la-Chevre, NE of Longuyon. Members of the 94th Aero Squadron visited this site soon after they moved to the German field at Noërs just west of Longuyon ca. 21 November 1918. John DeWitt of the 94th Aero Squadron went up to Villers and collected souvenirs. That actual Junkers was later collected, sent to Romorantin, and eventually to Canada where it still is today. This series of Junkers left the factory ca. 16‒28 September 1918 and fits the description of the type downed by Lieut. William P. Erwin on 8 October 1918 for his fifth confirmed victory, and his Observer Lieut. Easterbrook’s third.

The Junkers J 1, nicknamed the Blechesel ("Tin Donkey" or "Sheet Metal Donkey"), was the world's first practical all-metal aircraft. Built early in World War I,

As often the identification of this all-metal biplane here adds to the the confusion. The Junkers firm used an own identification system consisting of the letter J followed by a number ('arabic'). This all metal biplane was identified as the Junkers J.4 in this (factory) identification. When 'J.4' was ordered by the German Army it was allotted an identification in the system used by the Army (and allotted by the idFlieg - Inspektion der Fliegertruppen). This system consisted of a letter (denoting the class of the machine) followed by a number (always in Roman). So this Junkers J.4 was allotted the designation Junkers J.I. Why bother with this ? To identify this all-metal biplane as a Junkers J 1 would relate to the very first Junkers all-metal monoplane which was actually nicknamed 'Blechesel'. See the note above which unfortunately is not correct and further blurs the issue.

I Bow Down to Kees Kort superior knowledge for me to use the J.1 was incorrect . But just so I can feel a little good about my self the J.I was the first all-metal aircraft to enter mass production

A Junkers J.I (not JII, supposedly J.II as this never existed), factory identification J 4.