1378 LICENSES. [ART. 56

by registered letter to the address given by the operator when applying
for license certificate, which shall constitute sufficient form of notice,
suspend or revoke the operator's license issued to any person under sec-
tion 139 of this sub-title, for any cause which he may deem sufficient;
but every applicant for an operator's license whose application shall be
refused by said commmissioner, and every licensee whose operator's
license shall be suspended or revoked by said commissioner, may appeal
to the governor of this State from such decision, refusal, suspension or
revocation, the decision of the governor to be final, and such appeal not
to operate as a stay of such order or decision, by the commissioner. A
full record shall be kept by every court or justice of the peace of this
State of every case in which a person is convicted of a violation of any
of the provisions of sections 143, 144, 145, 146, 147 and 153 of this
sub-title, and a certified abstract of such record shall within ten days
after the date of such conviction, be transmitted by such court or
justice of the peace to the commissioner of motor vehicles. Said courts
and justices of the peace shall furnish to said commissioner the details
of all flagrant cases which may be heard before them, and they may
make such recommendations to said commissioner as to the suspension
or revocation of the operator's licenses of the parties defendant in such
cases as they may deem proper. Said commissioner shall keep such
records in his office, and they shall be open to public inspection. When-
ever any person licensed to operate a motor vehicle upon the public
highways of this State shall have been convicted of any violation of
any of the provisions of sections 143, 144, 145, 146, 147 and 153 of
this sub-title, the commissioner may, in his discretion, suspend or
revoke the operator's license of such person, and upon a third convic-
tion within the period of twelve calendar months, said person shall, in
addition to the penalties for such offense, incur a forfeiture of his
operator's license, and the said commissioner shall thereupon revoke and
require a return of the same. No person shall, for the period of three
months from the date of the revocation of his operator's license, be
capable of receiving a new operator's license, nor thereafter, except in
the discretion of the commissioner.

1904, art. 56. sec. 132. 1904, ch. 518, sec. 2. 1906, ch. 449, sec. 132.
1910, ch. 207. sec. 140 (p. 176).

142. Every motor vehicle, except motorcycles, and as hereinafter
otherwise provided, shall at all times while being used or operated in
this State, have displayed, entirely unobscured and kept reasonably
clean, the number plates or markers issued by the commissioner of
motor vehicles, for such motor vehicle as hereinafter'provided. One
of such plates or markers shall-be displayed conspicuously on the front
and the other on the rear of such motor vehicle, the one on the rear,
to be fastened so as not to swing. Every motorcycle, while being used
or operated in this State, shall have displayed on the rear thereof the
plate or marker furnished by the commissioner of motor vehicles as
aforesaid, said plate or marker to be so fastened as to be entirely unob-