NEGRETTI & ZAMBRA BLUE VITRIFIED ENAMEL & CHROMED BRASS INSTRUMENT BADGES

Now these Negretti & Zambra badges really are quite something,  lozenge shaped and resplendent in a a mazarine blue vitreous enamel ground over a chromed brass backplate of size  63  mm  x  25 mm thee are indeed quite special.  .  As you can see from the photos, the badge has a very slight curved radius to allow it to fit not just a flat surface but also a slightly dished one too.

I have one of these on my Fortin barometer casing and very nice it looks too.  A rare item, rarely seen and new old stock - limited number available.