Here are three early CD 126.3s as follows -- actual postage additional:

CD 126.3 W. BROOKFIELD / 45 CLIFF ST. // CAUVET'S / PAT / three patent dates -- exceptionally clear embossing on this one! VNM -- $12 (SOLD)

CD 126.3 1 / W. BROOKFIELD / 55 FULTON ST. N.Y. // three patent dates -- just a small bb ding -- $10

CD 126.3 W. BROOKFIELD / 45 CLIFF ST. // CAUVET'S / PAT / three patent dates -- clear embossing on this one! small amber polywog in the dome! VNM -- $12