A Pall Mall shaped 30 ounce lime green glass soda syphon with a clear glass internal tube. " C.O STEFFENSEN / NEW PLYMOUTH " is etched on the glass in a ornamental border surrounding the interlinked letters " C O S " . " BRITISH SYPHON Co LTD/LONDON " is etched in small lettering below this. " DEPOSIT STEFFENSENS / 5' / CORDIALS / NEW PLYMOUTH " a red sticker on the reverse side of the bottle reads. " C.O STEFFENSEN / NEW PLYMOUTH " is marked on the plated metal top." BRITISH SYPHON Co LTD LONDON " is marked on the other side of the top.