When meeting new people one can never be too careful as to the validity of their visible form. In society at both ends of the spectrum, from pauper to lord, you can never be certain of their human credentials. Nowadays both Vampiri and Lupine tread the earth amongst us. Although I am quite sure, most are of no worry to a gentleman of means, however some may be more troublesome.
This new device from Verne Industries will aid any gentleman or lady who has any worries as to the identity of a new or long-standing acquaintance.
This technological marvel has been in use by Her Majesty for some months and has been of great benefit, avoiding potential discord or worse. When in use, the device offers no discomfort to both user or recipient.