Monophone of 1925 was AE's first handset
Monophone was the handset itself, not the complete phone)
detail, at the top, displays where a dial could be placed.
rectangular magneto generator box, with black colored heavy bakelite
was designed to be used with an external subscriber set.
is a heat-resistant product and a chemically stable resin which
is actually the first plastic ever made. It was invented in Belgium by an American chemist
by the name of Dr. Leo Baekeland. Easy to see where it got its name then.