Insulators as follows -- actual postage additional:

CD 151 H.G.CO. / PATD MAY 2 1893 // PETTICOAT -- SDP on both skirts -- light aqua -- super heavy with big dome glass -- only issue is an open bubble on the upper wire groove -- $10

CD 151 H.G.CO. / PATD MAY 2 1893 // PETTICOAT -- SDP on both skirts -- light aqua -- super heavy with even more dome glass including a nice bubble -- just a few wire rubs -- $15

Or take the pair for $20