1955 most of the highway or state patrol used the two door sedans. This one even has a radio!
	Minnesota State trooper 1955 2 door sedans.
	Although two way radios were rare at the time, this officer is ready with his in his 55 4 door sedan.
	A 55 Chevy squad car, probably a state police or  Highway patrol beings it's a two door sedan.
	1956 4 door sedan unknown location.
	Tampa in  l958, l956 Chevy.
	1957 210 4 door sedan.
	Quite a line up of 57 210 4 door sedans.
	1957 150 2 door sedan.
	More 1957 150 two door sedans.
	This is a beautiful picture of a l957 150 2 door sedan Ohio State Patrol car.
	Boston Police 1957 150 4 door sedan.
	Idaho Springs Police 1957 150 2 door sedan.
	Believed to be Albuquerque Police along with the next photo below.
	It's interesting that these appear to be Bel Air models due to the trim.
	A very proud Marshal Berg with his new 1957 150 two door.
	1957 150 two door sedan of the Kentucky State Police.
	Another 1957 150 two door sedan.
	Baltimore 1957 150 two door sedan along with a 57 210 two door sedan parked ahead of him.
	Some scans of 1957 police brochures.
	Although not a tri five this is a beautiful 1958 Ohio State Patrol 2 door Delray.

More to come... 

Non tri five Chevy cop cars 

Various Ford brochures for their police options.
Poor 58 Chevy, trees never lose.
Maryland State Police 2 door 59 Chevy
1957 Dodge Coronet
Tampa, 1959
l957 Ford Fairlane, Seaside Police dept
CHP 1955 2 door Buick
West Lafayette l956 Ford?
Ann Arbor PD, Unknown year
San Francisco PD
Riviera Beach FL
1953? Chevrolet Hoboken PD
1967 California Highway Patrol, Oldsmobile Delmont 88
1967 Oldsmobile California Highway Patrol 1968 Volkswagen 1600 Type 3
Ohio State Highway Patrol 1958 Ford
1957 Plymouth
Ohio State Highway Patrol Plymouth
1957 Studebaker Parkview wagon
1955 North Carolina Highway Patrol
Paterson PD
Lockport, New York
l956 Ford. Santa Barbra Police

Many many more to come...

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