826 LAWS OF MARYLAND. [CH. 378

more than thirty days in the discretion of the Justice of
the Peace or the Court hearing such case.

(4) MUFFLERS. No driver or operator of any motor
car, taxicab, automobile, motor truck or motor cycle shall
use any cutout, fitting or other apparatus or device which
will allow the gases from the engine of the motor vehicle
to escape into the atmosphere without first passing through
a silencer, expansion chamber or other contrivance suitable
and sufficient for reducing as far as may be reasonably
practicable the noise which would otherwise be caused by
the escape of the said gases; provided that this regulation
shall apply to a motor vehicle propelled by an internal com-
bustion engine.

(4A) EMBLEMS. It shall be unlawful for any person to
display upon a motor vehicle the insignia or emblem of any
motor vehicle club or similar organization, unless he shall
be entitled to use the same under the constitution, by-laws,
rules or regulations of such club or organization.

(4B) SMOKE SCREEN. No motor vehicle of any kind
shall at any time, whether in use or not in use, carry or be
equipped with any device, designed, constructed or intended
to be used for the purpose of emitting or laying down a
smoke screen or emitting or discharging any screen of
vapors, gases, fumes or substances of any kind, and it shall
be unlawful for any such device, or part of such device,
whether in operating condition or not, to be attached to
any motor vehicle. Any person violating any of the pro-
visions of this sub-section shall be guilty of a felony and,
upon conviction thereof, shall be punished by imprisonment
in the House of Correction for a term of not less than one
year nor more than five years in the discretion of the
Court.

(5) PENALTIES. Any person violating any of the pro-
visions of this section shall be deemed guilty of a mis-
demeanor, and except in other cases in this section other-
wise provided for, upon conviction, subject to a fine of not
less than five dollars ($5. 00) nor more than fifty dollars
($50. 00), for the first offense; provided, however, that in
the event approved lenses or bulbs are used, and, due to
improper adjustment, they do not comply with all the pro-
visions of this section, no penalty shall be imposed for the
first offense.

All the provisions of this Section 193, including the sev-
eral sub-sections thereof, shall apply both to the operator
of a motor vehicle and to the owner or person in control