According to the FAQ page under “How may I receive a sample of your fragrance?” on the Hermes Paris website as of 8/19/18, you can request samples of fragrances by using the Contact Us form.
https://www.hermes.com/us/en/faq/products-us/
Select Contact Us lower left of the page
Select email us
Select "other" as subject
As for a sample along with your address in the message box
https://www.hermes.com/us/en/faq/products-us/
click the “send us an email” link on the right and select catalogues and samples option and fill out the form with your complete mailing address.
https://www.hermes.com/us/en/faq/products-us/
Click the “send us an email” link on the right
Select catalogues and samples option
Request a Free Hermès Paris Fragrance Sample