On Saturday, January 7, 2017 at 5:46:02 AM UTC-5, wrote:
Hello Stuart,

Thank you for all the information. I am planning to install tow hook on our C180 in India. I badly need STC for installing hook otherwise local regulatory authority will not spar me. Please advise,How can get SSA copies of STC's issued to Javelin Aircraft Company for tow hook installation on Cessna 180.

regards
Ahmed

Ahmed,

Curt's post above had a better link.
Look at the AC-43.13-2B this may be what you need: https://www.faa.gov/documentLibrary/...2043.13-2B.pdf

It has a photograph of the Cessna 180 Tow hitch Bracket

Stuart