Insulators as follows -- actual postage additional:

CD 145 CREB (light embossing) W. BROOKFIELD / 45 CLIFF ST. / NY // JAN 25 1870 - large bubble at base on front that is fully sealed! no issues, maybe some light haze. -- $10

CD 252 (note error) HEMINGAY-62 // MADE IN U.S.A., RDP, nice blue shade, two tiny flakes -- $15 (SOLD)