HEIGHT = 11 inches
WIDTH = 6 inches
VALUE = $150 - $350

Union Co.'s Marking :
J.Z.H.
1949
DS1

Note 1:
JZH stands for John Zimmerman Harner

Note 2:
The English call their doorstops "Door Porters".

Note 3:
Union Manufacturing Co.was a iron castings foundry in Boyertown, Pa. Purchased by a group of businessmen in 1894, they started the metal production facility. John Z. Harner, took on the title of superintendent in 1910. By 1921, he bought the company for himself and served as its president. During his tenure the company made motor blocks, piston cylinders, light poles, barbell weights, ornamental knickknacks, mechanical banks, and trivets.

Note 4:
The Kenrick Foundry infomation presented here is per the "Kenrick Catalogue of 1876". In that catalogue are sketches of their door poreters, as well as many of iron products. You may see Kenrick's history under "Foundries" on the homepage.
View P is the sketch taken from their catalogue of this doorstop.