I have for sale today a good example of a vintage Royal Ark Mariner Breast Jewel.Solid silver and fully hallmarked to the botton right hand side of the front of the Ark and on the reverse of the Dove.Also maker marked.Can't make out the datemark due to where the hallmarking is,but lots of age to it.Can't see any marks on the ribbon bar,but it's always been with the medal.Has been used so expect normal wear associated with age and use,but in overall good condition.Hasn't been worn for years so will benefit from a light clean,but can certainly be worn as it is.The jewel is a nice quality with excellent detail.