Hey guys,
The maker is Thomas Firth and Sons, the number is a batch number.
The chinstrap lugs are held in by split pin rivets as opposed to a double ended rivet used in the US made helmets from WWI.
The patent no stamp on the liner dates it's manufacture to after August 1916. The shell itself was manufactured after April 1916 as indicated by the steel rim fitted to the edge of the helmet. The earliest MK1's had a raw metal edge.
These are the sellers pics and the helmet is not as shiny as it appears in the photo's. There is also the remnants of a name on the chin strap, but unfortunately I can't figure out the name.
![British MKI Helmet 57924237](https://2img.net/r/ihimizer/img17/3702/57924237.jpg)
![British MKI Helmet 62290802](https://2img.net/r/ihimizer/img17/6041/62290802.jpg)
![British MKI Helmet 61349820](https://2img.net/r/ihimizer/img17/1501/61349820.jpg)
![British MKI Helmet 44642179](https://2img.net/r/ihimizer/img14/2790/44642179.jpg)
![British MKI Helmet 25354086](https://2img.net/r/ihimizer/img14/2458/25354086.jpg)
![British MKI Helmet 86996946](https://2img.net/r/ihimizer/img14/3366/86996946.jpg)
![British MKI Helmet 60660699](https://2img.net/r/ihimizer/img5/8982/60660699.jpg)
![British MKI Helmet 37472198](https://2img.net/r/ihimizer/img5/8158/37472198.jpg)
![British MKI Helmet 41217304](https://2img.net/r/ihimizer/img4/5552/41217304.jpg)
![British MKI Helmet 15903750](https://2img.net/r/ihimizer/img13/5182/15903750.jpg)
![British MKI Helmet 74693183](https://2img.net/r/ihimizer/img13/4975/74693183.jpg)
The maker is Thomas Firth and Sons, the number is a batch number.
The chinstrap lugs are held in by split pin rivets as opposed to a double ended rivet used in the US made helmets from WWI.
The patent no stamp on the liner dates it's manufacture to after August 1916. The shell itself was manufactured after April 1916 as indicated by the steel rim fitted to the edge of the helmet. The earliest MK1's had a raw metal edge.
These are the sellers pics and the helmet is not as shiny as it appears in the photo's. There is also the remnants of a name on the chin strap, but unfortunately I can't figure out the name.
![British MKI Helmet 57924237](https://2img.net/r/ihimizer/img17/3702/57924237.jpg)
![British MKI Helmet 62290802](https://2img.net/r/ihimizer/img17/6041/62290802.jpg)
![British MKI Helmet 61349820](https://2img.net/r/ihimizer/img17/1501/61349820.jpg)
![British MKI Helmet 44642179](https://2img.net/r/ihimizer/img14/2790/44642179.jpg)
![British MKI Helmet 25354086](https://2img.net/r/ihimizer/img14/2458/25354086.jpg)
![British MKI Helmet 86996946](https://2img.net/r/ihimizer/img14/3366/86996946.jpg)
![British MKI Helmet 60660699](https://2img.net/r/ihimizer/img5/8982/60660699.jpg)
![British MKI Helmet 37472198](https://2img.net/r/ihimizer/img5/8158/37472198.jpg)
![British MKI Helmet 41217304](https://2img.net/r/ihimizer/img4/5552/41217304.jpg)
![British MKI Helmet 15903750](https://2img.net/r/ihimizer/img13/5182/15903750.jpg)
![British MKI Helmet 74693183](https://2img.net/r/ihimizer/img13/4975/74693183.jpg)