Early Bluing Question for Mr. Beard
This is a question inspired by the fine early modified rifle recently offered for sale both here and on other milsurp sites. What caught my eye is the barrel bluing near the early rear fixed sight base which is strapped as opposed to a solid sleeve, as shown below.
http://www.fototime.com/2AA09216AC56706/standard.jpg
Some of the barrel appears in the white, in a edge that follows the contour of the fixed sight base. I would think that immersion in the bluing tank would not result in such a contour. Could this be a case where grease or similar was applied to mount the base, and then only wiped off where easily accessible? My understanding is that sight bases were mounted on barrels while all part were in the white, and blued afterwards. I've noticed a similar contour on other photos of strapped rear fixed sight bases, but this is the best quality photo for illustrating the point.
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early 1907 Rock Island rear sight base
Here are some photos of my Rock Island s/n 64145 with RIA 3-07 barrelAttachment 46594Attachment 46595Attachment 46596
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more on the Rock Island 1903 s/n 64145
It is not often discussed but the breech or feeding cone on the barrel is in the white, the trigger
has the bottom hole and numbers on the butt plate doorAttachment 46597Attachment 46598Attachment 46599