City 1700's with Roof Lights

[Frederick J Sauerburger MD]

Gents:
Just received some HO Pgh Rys 1700 PCC's imported by MTS.
They are listed as 1725-1799 prototypes, and have the city "thing" (safety
grate, people catcher?) in front where the interurbans have the pilots.
BUT, they have roof headlights as well.  Joel showed me some pix of
prototypes for this rare combination, one in PAT white/red stripe/gray livery.
Can anyone conveniently get me the numbers of cars with this combination or
point me to the appropriate reference?

The Grateful Fred