Here are three colorful glass insulators as follows - actual postage additional:

CD 121 AM TEL & TEL Co (dome embossed) 2 on the dome -- with a great amber splotch on the front! Does have a small wire groove chip in the front (see pic) and a few light pings -- tough piece, especially with the great amber -- $20.00 (SOLD)

CD 154 Whitall Tatum No. 1 in purple, mold number 26 -- VVNM -- $25.00

CD 162 McLaughlin // No. 19 (very faint), SDP in a great bright blue!! VNM -- $25