Machine Details
Smith Corona
Coronet Super 12
1974 (U.S.A.)
6ELX-298535 G
Deaccessioned
Pica, 10cpi
Segment
QWERTY
Portable
Manual Electric
12"
17.25 × 12.5 × 5.5"
Yes
Machine Description
The Coronet Super 12 is one of Smith Corona’s later portable electrics, produced through the early-to-mid 1970s. The “12” refers to its 12-inch carriage, which gives you a wider writing field than the standard portables of the era. It runs on the familiar snap-in cartridge ribbon system Smith Corona introduced in the late 1960s, which makes ribbon changes fast and clean but limits you to the single, black typing color. Compatible cartridges are still in production today, so keeping this machine running is not a parts hunt.
The type action is light and consistent. These machines were sold as home and office portables, and the key feel reflects that, smooth without much resistance. Not a machine for writers who want tactile feedback, but very usable for long sessions.
By 1974, Smith Corona was facing serious pressure from electronic word processors and cheaper imports. The Super 12 is a product of that squeeze, well-built but designed with cost in mind. It does what it was made to do without much fuss.
A few things to know if you own one:
- Cartridge ribbons make ribbon changes clean & convenient, but note that these machines do not use standard typewriter ribbons.
- The motor brushes wear over time. If the machine hesitates or cuts out, worn brushes are the first thing to check.
- Check the on/off switch contact. Corrosion there is common and causes intermittent power issues that look like motor failure.
Important Note: when wishing to eject the ribbon cartridge – push the lever IN (not down) to avoid damage to the machine.
Replacement ribbon cartridges are still available. Search for “Smith Corona 17657 Ribbon Cartridge”
This machine includes its original manual, which I’ve scanned & added to the resources section below. I’ve also submitted a copy to Richard Polt’s wonderful archive of typewriter manuals.
Serial Number Location:
Stamped on to the bottom of the frame, visible by looking at the left side of the bottom of the machine
Accessories / Ephemera
Manual, extra type rest, interchangeable type slug, guarantee card, various promotional mailers & offers
Features
- Tabulator
- Variable Line Spacing
- Margin Release
- Touch Selector
- Paper Support
Condition Report
Some very minor nicks & scrapes, but overall great condition.
Typing is incredibly fast
The Power Return feature is quick but can be jarring. Oftentimes, it bounces forward a bit from the left margin.
Great shape; both smooth & supple
Feeding works flawlessly
Accurate and quick
All controls work as expected
Characters are very clean & sharp. Capital letters are sometimes light on the upper left side.
Very good condition. All symbols are clear.
Cartridge-based. Works as it should.
Complete and in good condition
Provenance
Pre-2023: Unknown
2023 – 2026: Hanttula Typeworks
2026 – ___: Carly P.
Deaccessioning Notes
Transferred to Carly P. of West Los Angeles
Related Resources
- User's Manual for the Smith Corona Coronet Super 12 Typewriter (via Hanttula)
- Smith Corona Coronet Super 12s on the Typewriter Database
- Smith Corona Coronet Super 12 Electric Typewriter Video Tutorial (via Classic Typewriter)
- '70s Smith Corona Coronet Super 12 - Demo video (via Jot & Tittle Typewriters)
Type Specimen
