"Mill" - Typewriter for Navy Radiomen copying CW (Morse Code) manually

A "mill" is distinguished from normal typewriters by having all caps (9 point, sans serif) and having numbers "1" and "slashed 0" on the top row.
Note: Portable models were typically used elsewhere than in the radio room, but still have the same key/type layout.

mill-type.jpg (32182 bytes)

Thanks to David Ring N1EA, you can download a mill font for Windows computers 
from https://www.qsl.net/n1ea/mill_02.ttf 
Save the file and double-click on it to install.

Copying CW before the mill - USS Walke in 1914
ship-walke-1914.jpg (70372 bytes)
Radioman at LOP (Local Operating Position) with older style mill
ship-cw-101a.JPG (183148 bytes)
Underwood mill aboard USS Massachusetts
p1010049.jpg (61009 bytes)
1966 - a more modern mill aboard USS Robert E Lee
robertelee-01.jpg (123199 bytes)
Another modern version aboard USS Liberty
liberty-halman-RM2.jpg (99271 bytes)
Yet another version aboard USS Rowan in 1969
rowan-69-02.JPG (69740 bytes)
1959 Aboard USS Estes
agc12-59-28b.jpg (217560 bytes)
1961 Aboard USS Estes
agc12-61-35b.jpg (393560 bytes)
Underwood Model 5 mill
mill-underwood5-1705-01.jpg (265233 bytes)
mill-underwood5-1705-02.jpg (333780 bytes) mill-underwood5-1705-05.jpg (279851 bytes) mill-underwood5-1705-06.jpg (236252 bytes)
1942 Underwood Model S mill
DSC00998.JPG (4456432 bytes)
DSC00999.JPG (4321341 bytes) --
Underwood Universal portable mill
mill-under-1209-01.jpg (39758 bytes)
mill-under-1209-03.jpg (48202 bytes) mill-under-1209-02.jpg (78071 bytes) Another Photo of Underwood Universal mill
mill-under-1210-01.JPG (218381 bytes) mill-under-1312-01.JPG (491611 bytes) Radioman School - 1943-44
training-bos-1943.jpg (150436 bytes)
mill-under-1210-06.JPG (175874 bytes)
mill-under-1210-03.JPG (250295 bytes) mill-under-1210-02.JPG (212041 bytes) mill-under-1210-05.JPG (120300 bytes) mill-under-1210-04.JPG (314541 bytes)
mill-under-1312-03.JPG (597022 bytes) mill-under-1312-04.JPG (538065 bytes) mill-underwood-1601-01.jpg (443116 bytes) mill-underwood-1601-02.jpg (359836 bytes)
Royal model KMM mill

mill-royal-1504-01.JPG (222495 bytes)

mill-royal-1504-02.JPG (212592 bytes) mill-royal-1504-03.JPG (279803 bytes) mill-royal-1504-04.JPG (135568 bytes)
1940's model Royal Arrow portable mill
mill-royal-01.JPG (452441 bytes)
mill-royal-04.JPG (601355 bytes) mill-royal-02.JPG (426264 bytes) mill-royal-03.JPG (436170 bytes)
mill-royal-05.JPG (444730 bytes) mill-royal-06.JPG (413222 bytes) mill-arrow-1401-01.jpg (353437 bytes) mill-arrow-1401-02.jpg (387686 bytes)
mill-royal-1302-01.JPG (517044 bytes) mill-royal-1302-02.JPG (424994 bytes) mill-royal-1704-01.jpg (241062 bytes) mill-royal-1704-02.jpg (301001 bytes)
mill-royal-1942-1310-01.JPG (390636 bytes) mill-royal-1942-1310-02.JPG (370409 bytes) mill-royal-1942-1310-03.JPG (363455 bytes) mill-royal-1942-1310-04.JPG (187616 bytes)
1940's Corona Standard portable mill

mill-corona-1604-01.jpg (160226 bytes)

mill-corona-1604-02.jpg (74192 bytes) mill-corona-1604-03.jpg (174248 bytes) mill-corona-1604-04.jpg (157577 bytes)
Remington 5 portable mill
remington-5-1604-01.jpg (217681 bytes)
remington-5-1604-04.jpg (322347 bytes) "USN" on case
remington-5-1604-03.jpg (226435 bytes)
mill-remington-1605-01.jpg (247592 bytes)
R.C. Allen mill
mill-allen-1611-01.jpg (173166 bytes)
mill-allen-1611-02.jpg (194609 bytes) mill-allen-1611-03.jpg (308023 bytes) mill-allen-1611-04.jpg (167681 bytes)

RIP-5 Underwood "Code Machine" - Used by intercept operators to copy Japanese Morse code - it prints Kana characters - More info, More info, More info

Browne, Jay R., Editor. "RIP 5, The Underwood Code Machine". Naval Cryptologic Veterans Association Special Publication. 2005. 110 pp. 
From NSA article on Linguists - Katakana was usually used for sending telegrams and for Morse transmissions from ships or military units -- and was what American intercept operators meant when they said they "copied kana" or "copied kana code."

In order to provide standard representation of Japanese in intercept, OP-20-G's Laurance Safford bought and modified typewriters for intercept operators. This machine came to be called the RIP-5 and eventually was shared with the Army's SIS.

An OP-20-G history described the RIP-5 as "the kana character represented by a dot-dash combination which, in International Morse, represented a Roman letter, was printed by the type block actuated by the key, which on a normal typewriter, caused that letter to print." That is, when a Japanese clerk transmitted "-," the U.S. operator recognized it as Roman "B" and struck "B" on the RIP-5; the typewriter, however, printed out the kana character [HA] represented by "-" in Japanese.
Photos from eBay 2018 
RIP-5 based on Underwood "Model 5"
mill-kana-1806-01.jpg (506197 bytes)
mill-kana-1806-02.jpg (327120 bytes) mill-kana-1806-03.jpg (333366 bytes) mill-kana-1806-04.jpg (181204 bytes)
mill-kana-1806-05.jpg (401914 bytes) mill-kana-1806-06.jpg (357805 bytes) mill-kana-1806-07.jpg (259229 bytes) mill-kana-1806-08.jpg (506111 bytes)
Photos from National Cryptographic Museum archives
RIP-5 based on Underwood "Model 5"
rip5-ncm02-01.jpg (561512 bytes)
rip5-ncm02-02.jpg (1043502 bytes) rip5-ncm02-03.jpg (1068380 bytes) rip5-ncm02-04.jpg (914720 bytes)
rip5-ncm02-05.jpg (1043294 bytes) rip5-ncm02-06.jpg (1032472 bytes) rip5-ncm02-08.jpg (917880 bytes) rip5-ncm02-09.jpg (720587 bytes)
RIP-5 based on Underwood "Master"
rip5-ncm03-01.jpg (707092 bytes)
rip5-ncm03-02.jpg (783162 bytes) rip5-ncm03-03.jpg (963052 bytes) rip5-ncm03-04.jpg (621325 bytes)
RIP-5 based on Underwood "Model 5"
rip5-ncm04-01.jpg (678913 bytes)
rip5-ncm04-02.jpg (893933 bytes) RIP-5 based on Underwood "Universal Portable" for shipboard Radio Intercept Unit use
rip5-ncm01-02.jpg (404661 bytes)
rip5-ncm01-01.jpg (623526 bytes)