there are 8 different models of the 11 auto patrol's if you can provide the serial number this will given us more information and can better establish the value ( pictures also are helpful)
The model # 7D46, engine # 2A1098, the local cat dealer was able to tell me it was built march 1933, acording to them this is # 46 built, production started late 1932. Here are some pics as well.[attachment=31408]DSCN0520.jpg[/attachment][attachment=31409]DSCN0519.jpg[/attachment][attachment=31410]DSCN0526.jpg[/attachment][attachment=31411]DSCN0522.jpg[/attachment][attachment=31412]DSCN0530.jpg[/attachment][attachment=31413]DSCN0533.jpg[/attachment][attachment=31414]DSCN0523.jpg[/attachment][attachment=31415]DSCN0528.jpg[/attachment][attachment=31416]DSCN0521.jpg[/attachment][attachment=31417]DSCN0534.jpg[/attachment][attachment=31418]DSCN0525.jpg[/attachment][attachment=31419]DSCN0535.jpg[/attachment][attachment=31417]DSCN0534.jpg[/attachment]![]()
Did the cat dealer tell you that only 51 machines were produced in 1933?
11 Auto Patrol 1932 7D1 to 7D51 1933
According to spec sheet It has the 5500G engine which is the same as a Caterpillar R3
Do you have a pic of the manifold side of the engine ? The condition of the manifolds have a lot to do with the value of most gas cats .
Sorry for the long reply time, I don't have any more pics but the preheat portion off the intake is almost completely rusted out and broken, the exhaust manifold is severely cracked as well, the diverter valve is seized and broken and all linkages are missing.