Charlie, here is my opinion on your center photo.
Top two are CMP. and later U.S Mil. production.
Third down is U.S. manufacture. (eg. 42 Dodge 3/4 ton)
Bottom one is British.
This is just my opinion from what I have experienced. I could well be wrong.
I believe the big cylindrical ones can be converted from pressure to vacuum or vicky verco.
Also my comment about the hill was because when the throttle is closed you get the max . manifold vacuum and when the throttle is down (open) you have very little manifold vacuum, which results in the wipers slowing or stopping.
I have never seen the top one in your first photo, before now.
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Bluebell
Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
Last edited by Lynn Eades; 05-08-21 at 23:45.
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