the small blue/white bowtie pictured goes on the bottom of the small (4')keyhole shaped OK Used Cars (both neon and non-neon versions). The yellow/blue bowtie OP shows is too small too have been neoned IMO. The holes there are for mounting it to the larger sign. Typically if there is neon on a sign it will have larger (1.25" or 1.75") holes for the neon tubes to enter sign interior. I will measure the yellow/blue bowtie I have for comparison.
