https://www.reddit.com/r/typewriters/comments/1t7ggls/techno_pica_typeface_hermes_3000/

Techno pica typeface on a Hermes 3000 with foundry marks "S" and "TP".

https://www.reddit.com/r/typewriters/comments/1swprt7/finally_a_sansserif_machine_a_smith_corona_250/

Foundry marks: 85U or 85DC

https://typecast.munk.org/2023/02/18/1967-womda-typewriter-typefaces-smith-corona-scm-fonts/

An example of the Elite Gothic No. 16 can be found on Reddit which has a "cross" foundry mark with 1, 6, S, empty in the four quadrants from top to bottom and left to right.

https://www.facebook.com/groups/1794856020751839/posts/4424498594454222/

Royal Canterbury pica - PC<br /> Royal Semi-Gothic pica - P SG

https://www.facebook.com/groups/TypewriterCollectors/posts/10163497490649678/

Royal Pica Italic typeface example with P1 as a foundry mark on the slugs.

https://www.facebook.com/groups/TypewriterCollectors/posts/10161611646934678/

1950 Underwood Rhythm Touch with Victoria Elite typeface, 12 CPI, Slugs marked "EV".

Hermes typefaces by foundry mark:<br /> S TP = Techno Pica;<br /> S TE = Techno Elite;<br /> S PP = Petit Pica;<br /> S DE = Director Elite;<br /> S NO = Epoca;<br /> S 6 = Pica;<br /> S 7 = Elite

via https://old.reddit.com/r/typewriters/comments/1q8dabt/what_typeface_is_this_on_my_hermes_3000/

https://typewriterdatabase.com/1926-mercedes-4.19461.typewriter<br /> "Steile Sierschrift" (Steep ornamental font) <br /> RaRo foundry mark 5 circle I<br /> paired with<br /> RaRo foundry mark 57 AR

via Koponewt (aka Otto Koponen) https://www.reddit.com/r/typewriters/comments/1kg83kz/olympia_typeface/

https://old.reddit.com/r/typewriters/comments/1ko6mbi/olivetti_typefaces/

via u/Koponewt

https://www.reddit.com/r/typewriters/comments/1kinttg/can_someone_please_help_me_determine_the_exact/

https://schriftexperte.de/en/haas-atlas/

https://schriftexperte.de/en/

https://archive.org/details/typewriter-foundry-marks-haas/mode/2up

pointer from Pelicram

via Pelicram at https://discord.com/channels/639936208734126107/639939010541649951/1289159334948765789

1960 Union Foundry Typewriter Type Slug Specifications – To Type, Shoot Straight, and Speak the Truth… by [[Theodore Munk]]

via https://www.youtube.com/watch?v=umepbfKp5rI