R. WILLIAMSON Co.
WM-C1
Standard Cap w/ Finial
3 5/8 " OD, ¼ hole
Cast and machined brass
This cap and finial are the ones found most often on Williamson's portables. The range of shades that they fit will have an aperture around 3½" in diameter.
WM-K1
Standard Finial
1¼" high, tapped ¼-20
Cast brass
WM-W1
Small Wheel
3 1/8 " OD, tapped ¼-20
Cast and machined brass
Fits apertures from 2¾" to 3".
WM-W2
Standard Wheel
3 7/8 " OD, tapped ¼-20
Cast and machined brass
Fits apertures from 3¼" to 3 ¾".
WM-K1
Standard Hanger Hook
3½" high, tapped ¼ IPS w/ thru hole
Cast brass