In R Residential Districts, signs may be erected and maintained only when in compliance with the provisions of this article and any and all other ordinances and regulations of the Borough relating to the erection, alteration or maintenance of signs and similar devices.
A. 
Signs advertising the sale or rental of the premises upon which they are erected, when erected by the owner or broker or any other person interested in the sale or rental of such premises, may be erected and maintained, provided:
(1) 
The size of any such sign is not in excess of six square feet.
(2) 
Not more than two signs are placed upon any property in single and separate ownership unless such property fronts upon more than one street, in which event two such signs may be erected on each frontage.
B. 
Signs advertising the sale or development of the premises upon which they are erected, when erected in connection with the development of the premises by a building, contractor, developer or other person interested in such sale or development, may be erected and maintained, provided:
(1) 
The size of any sign is not in excess of 20 square feet.
(2) 
Not more than two signs are placed upon any property in single and separate ownership unless such property fronts upon more than one street, in which event two such signs may be erected on each frontage.
C. 
Signs indicating the location and direction of premises available for or in process of development, but not erected upon such premises, and having inscribed thereon the name of the owner, developer, builder or agent may be erected and maintained, provided:
(1) 
The size of any such sign is not in excess of six square feet and not in excess of four feet in length.
(2) 
Not more than one such sign is erected on each 500 feet of street frontage.
D. 
Signs bearing the word "sold" or the word "rented" with the name of the person effecting the sale or rental may be erected and maintained, provided the conditions in Subsection A of this section are complied with.
E. 
Signs of mechanics, painters and other artisans may be erected and maintained during the period such persons are performing work on the premises on which such signs are erected, provided:
(1) 
The size thereof is not in excess of 12 square feet.
(2) 
Such signs are removed promptly upon completion of the work.
F. 
Signs of schools, colleges, churches, hospitals, sanitariums or other institutions of a similar nature may be erected and maintained, provided:
(1) 
The size of any such sign is not in excess of 20 square feet.
(2) 
Not more than two signs are placed on a property in single and separate ownership unless such property fronts upon more than one street, in which event two such signs may be erected on each frontage.
G. 
Signs advertising the sale of farm products when permitted by this article, provided:
(1) 
The size of any such sign is not in excess of six square feet.
(2) 
Not more than two signs are used.
(3) 
The signs shall only be displayed when such products are on sale.
H. 
In addition to the other requirements of this article, every sign referred to herein must be constructed of materials kept in good condition and repair and not allowed to become dilapidated. Each such sign shall be removed when the circumstances leading to its erection no longer apply. Unless specifically authorized by other ordinances or regulations of the Borough, the construction or erection of any such signs within the street lines of public highways is hereby prohibited.