Many street light enthusiasts mistake the Westinghouse OV15 for  Crouse-Hinds L-150s and the Westinghouse OV25 for Crouse-Hinds L-250s. But 4th Generation Westinghouse OV15 and OV25 are the actual Westinghouse models. The closeup of the glass lens in the 4th picture proves that these street lights were manufactured by Westinghouse.

Pictured on the left:
Top: Westinghouse OV50
Bottom 2: Cooper OVL
In 1982, Cooper Lighting bought Westinghouse's line of Silverliners.

The glass and plastic lenses you see on small street lights in residential areas, such as the glass lens on Westinghouse OV-15 Silverliners, or the plastic lens on General Electric M250R2s can fit ANY small street light. Including the Cooper OVX. It can fit Crouse-Hinds OVS, Crouse-Hinds OVZ, Cooper OVZ, Cooper OVX, Thomas & Betts Model 113, Line Materials Unistyle 175, General Electric M250R (and others related to the M250R), Crouse-Hinds L-150, and Westinghouse OV-15 Silverliner.

The glass lens on American Electric/ITT Model 25 luminaires can also fit Thomas & Betts Model 125s, and  General Electric M400R3s and M400A3s, and Line Materials Unistyle 400s and McGraw-Edison Unidor 400s and vice versa.