Many thanks to SWLing Post contributor, Dan Robinson, who notes:
The amazing streak of rare radios, never before seen on Ebay or rarely seen there, continues, with the appearance of this Nems-Clarke 1510A receiver.
I attempted to find this radio in the Osterman guide to no avail — it’s not in there, unless I missed it. There are a few informational pages about Nems Clarke on the Internet (see below):
The reason it isn’t in Fred Osterman’s book, is because it isn’t a general coverage “communications receiver.” There are hundreds of Nems Clarke receivers out there, but they are limited in popularity by the reception frequencies, or the lack of…..