842                         LAWS OF MARYLAND.                  [CH. 324

provided that no such permit shall be issued by the State
Roads Commission, if the maintenance, construction or erec-
tion of such advertisement would injuriously affect the safety
of public travel on State highways by dangerously obstruct-
ing the clear view of the highway by one operating a motor
vehicle thereon, and provided further that nothing herein
contained shall be construed to confer upon the State Roads
Commission the power to issue any such permits for the main-
tenance, construction or erection of any such advertisement
within any area over which the General Assembly of Maryland
has conferred zoning powers in any board or body unless the
application for the permit provided for in this section shall be
accompanied by a certificate which satisfies the State Roads
Commission that the said board or body in whom such zoning
powers are vested has approved of the maintenance, construction
or erection of said advertisement as applied for. The minimum
fee for any permit issued as provided for in this section shall
be one dollar ($1. 00).

Permits may be renewed from time to time for a term or
terms of one year each upon payment of the fee due as provided
for in this section, and may be granted at any time during a
calendar year, to expire on the thirtieth day of April, follow-
ing, upon compliance with the terms of this section, and pay-
ment of such proportion of one-half of one cent (1/2 of 1 ct. )
a square foot of each billboard or other structure or advertise-
ment to be used as aforesaid, as the unexpired portion of the
year bears to a full year, provided that the minimum fee shall
in no case be less than one dollar ($1. 00).

278. The name and post office address of the person, firm
or corporation owning any billboard or structure, or other ad-
vertisement, or controlling the same for advertising purposes,
shall be plainly inscribed thereon. Permits shall be numbered
consecutively, and each billboard or other structure used for
advertising purposes, shall show the number and expiration
date of the permit.

No permit shall be required in order to erect, maintain
or use any billboard or other structure on real estate exclusively
to advertise the same for sale or to let; nor to erect, maintain
or use the same on the building or structure or within one hun-
dred feet of such building or the entrance thereto, where the
business advertised is carried on, or to advertise exclusively