He had brandished the cypher at a public rally to back his claims.

Source: https://www.siasat.com/former-pak-pm-imran-khan-grilled-in-attock-jail-in-missing-cypher-case-reports-2678446/

The changing of a monarch requires insignia to be replaced, with Charles' Tudor crown, buttons and royal cypher - or monogram - stitched on to the ceremonial uniforms that will be on display among the 6,000-strong military procession.

Source: https://gazette.com/news/us-world/king-charles-coronation-is-a-great-fit-for-londons-savile-row-tailors/article_0b0fbf0c-d95f-53e5-b6f2-9e1500a21afd.html

The cypher case pertains to a diplomatic document that the Federal Investigation Agency’s charge sheet alleges was never returned by Imran.

Source: https://www.pakistantoday.com.pk/2023/11/23/cypher-case-special-court-orders-production-of-pti-chief-qureshi-in-court-on-28th/

Upholstered in crimson silk damask with the Canterbury Rose pattern, it has the EIIR cypher for Queen Elizabeth II embroidered on the back.

Source: https://www.dailymail.co.uk/news/article-11714213/King-Charles-Queen-Consort-Camilla-sit-brand-new-thrones-Kings-coronation.html?ns_mchannel=rss&ns_campaign=1490&ito=1490