June 9, 201511 yr #1 Never remember seeing this type of cap before, the canteen is unmarked except for a logo or someones initials on the bottom. It came in this decent 1917 canteen cover. thanks in advance.
June 9, 201511 yr #2 The cap is an uncommon variant. There is another where the edge is knurled (checkered).
June 9, 201511 yr #4 Earliest versions of the M1910 Canteen like yours had these earlier style caps. Note that the attaching ring is different, too.
June 10, 201511 yr #5 Yes this is the very first 1910 canteens. They were unmarked and had these flat type caps. This is a great find! It had a different cup too. Slightly different. It would have been in an Eagle snap cover. Ronnie
June 10, 201511 yr #6 Canteen body is different too on the early ones.No side seam they were spun as I recall.
June 11, 201511 yr #8 Never remember seeing this type of cap before, the canteen is unmarked except for a logo or someones initials on the bottom. It came in this decent 1917 canteen cover. thanks in advance. Phantom4 You have a second pattern AGM spun Model of 1910 canteen there. (Not including the two variations of the first pattern AGM canteen) From what I can find it seems to be mfg'd between early 1913 to around 1915. Your example has the "improved" neck/ring design first introduced by the Rock Island Arsenal in 1913. You have a nice, relativly uncommon piece of Aluminum there. Pep
June 11, 201511 yr #9 Pep, Is this not a first pattern AGM cap? How do you tell a second pattern canteen? And how do you tell the AGM swivel ring from the RIA 'improved' swivel ring?
June 11, 201511 yr #11 Pep, Is this not a first pattern AGM cap? How do you tell a second pattern canteen? And how do you tell the AGM swivel ring from the RIA 'improved' swivel ring? Yes you can call that cap a first pattern cap. It is the same as the one used on both the one piece first pattern variations. (threaded interior spout & smooth interior spout) For AGM the addition of the improved neck, ring and chain attachement gives it away. There is no real difference between the RIA and AGM swivel rings per say. RIA came up with the new neck design and AGM used this design. Pep
June 11, 201511 yr #12 php26sZlgPM.jpg I think this might be the second pattern? The pictured canteen is an example of a 1st pattern RIA canteen or first pattern welded seam. It has the hatched ridge on the cap, welded seams and the improved neck. On a historical note, this represents the first time Aluminum was welded together on a production scale. This pattern is much less encountered than the AGM seamless types with the exception of the AGM first patter smooth interior neck. Pep
June 11, 201511 yr #13 This picture shows the differences at one view. The top ones are the AGM's The bottom ones are the RIA's rings next
June 11, 201511 yr #15 In the last post, the top photo is the AGM swivel ring, and the middle post is the RIA ring... ? The RIA ring looks like German silver - what is the AGM ring made from? And are some of the AGM swivel rings flattened?
June 11, 201511 yr #16 In the last post, the top photo is the AGM swivel ring, and the middle post is the RIA ring... ? The RIA ring looks like German silver - what is the AGM ring made from? And are some of the AGM swivel rings flattened? Top is the AGM and this type was only used/produced by AGM. Second in that pic can be either for AGM or RIA as they used the same drawings. It is possible that RIA provided these necks to AGM on contract for use. I am still looking into that. Of course AGM was fully capible to mfg these on thier own. Third one is the last RIA improvement and was adopted for all pre-ww2 canteens and some made during ww2. The AGM ring seems to be made in Aluminum, it is soft and easily bent/dented. I would have to look back at the drawing to see if it is indeed GS. It is much harder than Aluminum for sure. Pep
June 11, 201511 yr #17 The improved neck is actually a sleeve that slides over the canteen spout and the spout is bent over to retain the sleeve. I see that the sleeve is made from monel as listed on the drawing. The ring could be made of the famos "Omega Metal".
June 11, 201511 yr #18 Pep I know that some canteens were manufactured using the "spun" method. Can you please explain that process to me? How is a canteen made by spinning? Thanks. Ronnie
June 12, 201511 yr #19 Pep I know that some canteens were manufactured using the "spun" method. Can you please explain that process to me? How is a canteen made by spinning? Thanks. Ronnie Best I can make out is they started with a sheet of Aluminum and formed the flat bottom and defined the general shape. I imagine it like a very tall canteen cup. Then that was transferred to some type of lathe and held in place while spinning. A forming tool would form the top potion including the threads. I made it sound simple but it was a very hard process to prefect.
June 13, 201511 yr #20 Actually the process is not that hard. Artisans have been doing it for years. They used to teach how to do it in metal/wood shop in school. Gas tanks, scuba tanks, and the fancy water bottles are spun. I expect that it was time consuming and labor intensive back in the day so it was probably easier to press to pieces and weld them together. It is all automated today using cnc machines- light fixtures, reflectors , etc. just google metal spinning and you will have a better idea of how it is done. Those canteens are hard to find, thanks for posting and detailing the variations.
June 13, 201511 yr #22 Pep, do you know if the first RIA you show in the bottom row of that group of six was made in 1910? I understood that AGM would not initially license the patent for the (more costly) spun technique, and were the only mfgs of the M1910 canteen, in 1910. Would be interested in knowing what year that one was made, and if the first of the RIA's was spun or has a seam. Thanks for that post, BTW.
June 13, 201511 yr #23 Pep, do you know if the first RIA you show in the bottom row of that group of six was made in 1910? I understood that AGM would not initially license the patent for the (more costly) spun technique, and were the only mfgs of the M1910 canteen, in 1910. Would be interested in knowing what year that one was made, and if the first of the RIA's was spun or has a seam. Thanks for that post, BTW. Drawings and production records from the Arsenal indicate the first year of production is 1913. To my knowledge all RIA canteens are welded seam types.
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