Over the past 80+ years, the Batman Logo has undergone numerous transformations.  This 1970 Vintage Batman Logo has the word BATMAN in gold against a pale blue background fitting within the out stretched wings of a bat. This design was the title logo for the Batman Comics during the 1970's period. It is still an iconic image from DC Comics. Add this design to your Batman clothing collection. 

Our Batman Vintage Logo Collection features seven adult t shirt styles as well as tank tops, sweatshirt and kids and youth apparel in either a navy blue or white background.
See individual product pages for the white background version. 

The Bat Signal is a distress signal device that has appeared in the earliest DC Comics Batman comic books. Its longevity is evident by remaining the most iconic image associated with Batman. It has been redesign numerous times throughout the years,

As Batman fans know it is a means to summon the superhero, Batman.

Read about the Bat Signal from this Wikipedia page.

Here is another interesting post titled Batman Logo and Its History