Old Silversides spotted on I-81N in PA

[pabusnut]

Spotted an old Silversides on I-81N, just north of Harrisburg, PA on my way home from Ft Indiantown Gap.  It looked like either a 3751 or a 4151 towing an older Toyota SR5 station wagon on a tow dolly.  Of course I didn't have my camera, and my worthless cell phone camera would have made it look like the "Silver Streak"!!!

Does anybody know who it might have been?  Makes me feel better about taking my 1973 4905 out on the road!!

Steve Toomey
PAbusnut