L. M. ERICSSON
TELEPHONE No. 321

No. 321
Similar to Telephone No. 320, but fitted with a 2,000 ohm bell shunted across the line, and a generator with five magnets, No. 482.

Specially used where several instruments are connected in parallel oil the same line, and all of them have to be called simultaneously when a signal is given.

Weight 20.5 lbs.

Price £4 17s.

Renumbered as the AB 505.
Taken from the Ericsson Telephone Catalogue 1903

Last revised: March 28, 2024