L-15200 |
L-15200, L-15210 and L-15220 are very similar. L-15200 has a smaller center dot. The last three pictures are another example of the knob. See L-15220 for side views of all three knobs. Corbin, Lockwood & Sargent (1901 p. 56) made 20 fluted knobs. Pictured below is a window in the design for Corbin 1895 fluted knob.
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Dates:C. 1893 |