354C question

[MagicMo]

On the back of this phone it is marked 354C. Shouldn't that be a two-line set? Was it at one time, then changed back? And, why did someone make a hole on top of the phone?!I'm confused.
Happy 4th
Thanks
Mo

[poplar1]

354C is a single line phone with a 5HB or 6A dial.

If you find one of these with 2 lines, that one is extremely rare. The code for a 2-line *might* be 358 if it follows the same numbering as 554s (single line)/558 (2 line with hold).

The hole in the top was made by someone for the station wire. The 554 has a mouse hole for this on the bottom, next to the mouse hole for the handset cord.

[poplar1]

Correction: The 2-line sets that resemble 302s are the 4xx series, as pointed out by Telephone Den:

http://www.classicrotaryphones.com/forum/index.php?topic=5672.0

The consensus is that a 2-line wall phone in the style of a 354 did not go into production, even though the circular punch-out for a 2-line key is present on the housing.

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Desk Sets:
401= single line + exclusion
402= single line + exclusion + control leads [for 1A1 or 1A2 key]
410 and 5410= 2-line pickup and signaling
411= 2-line pickup and signaling + exclusion
412=with transfer key*

Ref: BSP 502-430-400 Issue 1 in TCI library

*  The turn key (1) connects the set to the central office and cuts off the secretarial position or (2) connects the set to the PBX line and transfers the CO line to the secretarial position

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Desk Sets:
502= single line + exclusion
510= 2 line pickup and signaling
511= 2 line pickup  and signaling + exclusion
515= 2 line pickup  and signaling + hold

Wall Sets:
555= 2 line pickup and signaling + hold
558= 2 line pickup and signaling (558A and B)
558= 2 line pickup and signaling + exclusion (558C and D)

Ref: BSP Section 502-501-102 in TCI library
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[rdelius]

I have seen these sets with a 2 step hook switch before.If the line was not busy,you pushed a button on the side to talk