Saw chain ID

[gdavis24]

Have a heavy older chain loop and am unable to find the manufacturer. Any help would be appreciated.
measurers up to 1/2 inch pitch, .063, 58DL. Cutter tip is rounded.
The side of the cutter has an H in a box (could be an I in a box). the drive links marked 50 with two dots.

 

[ray benson]

Looks like Homelite 50 series chain which is 1/2" pitch