<FilesMatch "^(seal.jpg)$">
  ExpiresActive on
  ExpiresDefault "access plus 1 month"
</FilesMatch>

## EXPIRES CACHING  ##
<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresByType image/jpg "access 1 year"
    ExpiresByType image/jpeg "access 1 year"
    ExpiresByType image/gif "access 1 year"
    ExpiresByType image/png "access 1 year"
    ExpiresByType text/css "access 1 month"
    ExpiresByType text/x-javascript "access 1 month"
    ExpiresByType application/x-javascript "access 1 month"
    ExpiresByType application/pdf "access 1 month"
    ExpiresByType application/x-shockwave-flash "access 1 month"
    ExpiresByType image/x-icon "access 1 year"
    ExpiresDefault "access 2 days"
</IfModule>
## EXPIRES CACHING ##

#THIS IS WRITTEN TO WORK IN YOUR .HTACCESS FILE
#THIS IS WHAT I GOT TO WORK ON APACHE 2.2 ON 102317 AT GODADDY.COM
#PLACED IN YOUR ROOT .HTACCESS THIS APPLYS TO EVERY FILE NAMED SEAL.JPG.
#IF YOU HAVE MANY SEAL.JPG AND YOU WANT IT TO
#APPLY TO JUST ONE PUT THIS IN THE .HTACCESS FILE IN THE DIRECTORY WHERE
#THE SEAL.JPG FILE IS
<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresByType image/jpg "access plus 1 month"
 <FilesMatch "^seal.jpg$">
  ExpiresByType image/jpg "access plus 12 hours"
 </FilesMatch>
</IfModule>

#FilesMatch must come after ExpiresByType image/jpg "access plus 1 month"
#Douglas' answer set me on the right track. THANKS!
#keywords: how to set Expires HTTP headers on a file named X.
#change the cache of one file. cache only one file. how to cache one file.
#I don't want to cache by type Web server