This soda is usually found with no date, but here is the dated version. The iron pontiled base doesn't have any residue.

Embossed: JOHN RYAN / EXCELSIOR / MINERAL WATER / SAVANNAH GA / 1859 // UNION GLASS WORKS / PHIL.A / THIS BOTTLE / IS / NEVER SOLD

Height: 7 1/2"  
Color: cobalt blue

Condition: Excellent - perfect structurally (no dings, chips, cracks), but it's never been cleaned and has some spotty wear and patchy haze that could be polish-cleaned if desired.

Reference Number: GW535

Price: $320