Here's a photo of the handle inner tubes on my Double Ring and five Single Rings.
View attachment 71712
From left to right here are the razors they came from and the tube diameters. I used a mic on the tubes but I don't have calipers to measure the length. However using two straight edges I found that all the tubes are the same length except #3 which is slightly shorter.
1..Double Ring..1905.. tube .313 "
2..Single Ring...1906.. tube .313
3. SR...............1921.. tube .310 early 1921 shorter tube
4. SR...............1916.. tube .313
5. SR...............1920.. tube .305
6. SR...............1915.. tube .314
Len
View attachment 71712
From left to right here are the razors they came from and the tube diameters. I used a mic on the tubes but I don't have calipers to measure the length. However using two straight edges I found that all the tubes are the same length except #3 which is slightly shorter.
1..Double Ring..1905.. tube .313 "
2..Single Ring...1906.. tube .313
3. SR...............1921.. tube .310 early 1921 shorter tube
4. SR...............1916.. tube .313
5. SR...............1920.. tube .305
6. SR...............1915.. tube .314
Len
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