By

Green Shield (c.1930's-mid 1960's)

Note that most NAMED storage/spice jars should NOT have this backstamp (i.e. in Green ink). There have been known fakes utilising doctored plain jars which nearly always have a Green Shield bacsktamp. There are  however some legitimate jars that are OK with a Green Shield, particularly those that were exported from the UK to the USA. Also some jars seem only to have a Green Shield (e.g. "Cookies"). Legitimate examples of the spice jar "Caraway-Seeds "have also been noted with a Green Shield.