ART. 56] MOTOR VEHICLES. 1379

scured and to be kept reasonably clean. No motor vehicle while used
or operated in this State shall have displayed upon either the front or
rear of such vehicle more than two plates or markers; nor shall any
person display or permit to be displayed upon any motor vehicle oper-
ated by him the registration number belonging to another vehicle, or
a fictitious number plate or marker; provided, however, that in the
event of the sale of a motor vehicle, the person using the same may
for a period of five days, and no longer, operate such motor vehicle
under the number assigned to it as aforesaid, provided he have and
display on demand of any proper officer the actual consent in writing
of such previous owner to use such number; and provided, also, that
where it clearly appears that the registration number has been lost
by accident, no penalty shall be imposed.

1910, ch. 207, sec. 140 A (p. 177).

143. Any owner or operator not a resident of this State who shall
have complied with the laws of the State in which he resides, requir-
ing the registration of motor vehicles or licensing of operators thereof
and the display of identification or registration numbers on such
vehicles, and who shall cause the identification numbers of such State,
in accordance with the laws thereof, and none other, together with the
initial letter of said State, to be displayed on his motor vehicle, as
in this sub-title provided, while used or operated upon the public high-
ways of this State, may use such highways not exceeding two perioda
of seven consecutive days in each calendar year, without complying with
the provisions of sections 135 and 139 of this sub-title; if he obtains
from the commissioner of motor vehicles and displays on the rear of
such vehicle a tag or marker which the said commissioner of motor
vehicles shall issue in such form and contain such distinguishing marks
as he may deem best; provided, that if any non-resident be convicted
of violating any provisions of sections 144, 145, 146, 147 and 153 of
this sub-title, he shall thereafter be subject to and required to com-
ply with all the provisions of said sections 135 and 139 relating to
the registration of motor vehicles and. the licensing of operators thereof;
and the governor of this State is hereby authorized and empowered to
confer and advise with the proper officers and legislative bodies of
other States of the Union and enter into reciprocal agreements under
which the registration of motor vehicles owned by residents of this
State will be recognized by such other States, and he is further author-
ized and empowered, from time to time, to grant to residents of other
States the privilege of using the roads of this State as in this section
provided in return for similar privileges granted residents of this State
by such other States.

1904, art 56, sec. 134. 1904. ch. 518, sec. 4. 1906, ch. 449. sec. 134.
1910, ch. 207, sec. 140 B (p. 178).

144. No person shall operate a motor vehicle or motorcycle on any
public highway of this State recklessly, or at a rate of speed greater