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| official count | PSS type | footnote(s) | price | authorization | Comment: Hoover-Noble Universal style numbers; PSS Town and Type catalog, 6th edition, is current basic reference |
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| [ ] | 713 | 50 | Nov, 1932 | Type 1-U121W | |
| [ ] | 841 | 4 | 15 | Mar, 1974 | U141nc, added 2nd ed, shifts D/T D/TX |
| 841 | 4, var | 15 | 6th ed added footnote 4, row2: d9.5 |
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