Cathy,
Sorry to hear you’re having problems; I hope things get better soon. I did a quick search of online auction sites listing the black metal Johnson & Johnson vintage Autokit No. 8 First Aid Kits from the 1920s and 1930s, and the ones I’ve found have sold on those sites in the $15 to $35 dollar range. Collectors of antique cars from that era are especially interested in the kits, but they would likely be the audience for those sites as well. A quick search on “Johnson & Johnson Autokit No. 8” should bring up any further results regarding collector’s value.
Best Regards,
Margaret