Reddit mentions of Smith Corona 17657 Ribbon for Smith Corona 2100 Typewriters

Smith Corona 17657 Ribbon for Smith Corona 2100 Typewriters https://www.amazon.com/dp/B00006RVRZ/ref=cm_sw_r_cp_apa_i_rZqWDbBTQT469

I've got a blue one of these. Great typewriter. I order my ribbons here: https://www.amazon.com/Smith-Corona-17657-Ribbon-Typewriters/dp/B00006RVRZ/ref=sr_1_11?crid=3GRLFGDKLVB69&keywords=smith+corona+typewriter+ribbon&qid=1573170854&sprefix=smith+coronoa%2Caps%2C184&sr=8-11

https://www.amazon.com/dp/B00006RVRZ/ref=cm_sw_r_cp_apa_vRJ8Bb1N9HZ50

The coronamatic 17657 is the Black Nylon ribbon and is either still in production or of very recent manufacturer. Amazon listing with correct picture is here: https://www.amazon.com/Smith-Corona-17657-Ribbon-Typewriters/dp/B00006RVRZ/ref=pd_sim_236_2?ie=UTF8&dpID=41ASCQE7TJL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&psc=1&refRID=J2MJF5KB6JBTRMJ395V2 (This is the one I have for mine)

Selectrics, with the exception of the the Model 72 (Selectric I Fabric ribbon) only have third party film ribbons available new, the Model 72 which used the fabric ribbon cartridge has nylon ribbons available for it.

Amazon Examples (none are actual IBM, but third party):

Model 71 (film spools): https://www.amazon.com/IBM-Selectric-Typewriter-Ribbon-Compatible/dp/B001D4F9E4/ref=sr_1_12?ie=UTF8&qid=1467922700&sr=8-12&keywords=selectric+ribbon

Model 72 (Fabric Cartridge): https://www.amazon.com/Typewriter-Ribbon-Selectric-General-Fabric/dp/B000HRXI1E/ref=sr_1_18?ie=UTF8&qid=1467922700&sr=8-18-spons&keywords=selectric+ribbon&psc=1

Selectric II: https://www.amazon.com/Nukote-Nk86hy-Selectric-Ribbon-Cartridges/dp/B00TRUOBHM/ref=sr_1_5?ie=UTF8&qid=1467922700&sr=8-5&keywords=selectric+ribbon

Selectric III: https://www.amazon.com/Typewriter-Ribbon-Selectric-Compatible-typewriter/dp/B007JNYNVI/ref=sr_1_3?ie=UTF8&qid=1467922700&sr=8-3&keywords=selectric+ribbon