BACKS FOR GLASS SIGNS

Back boards for glass signs

r-a4:€-made so that wh©n-glass-is~

: laid in frame, and moulding

j screwed on, the glass will rest

■ on its outer edge. Backs of

! flass signs should be made so

t^that glass will touch only on

i’buter edge (where oxidized

copper border is used), and do

not allow glass to rest on any

part, except ou-ter edge. Should

this occur, sign will catch

water and dust, causing it to

reel in a very short time.