The cross and the presence or lack of Christian influences

[RadioFM]

Thanks for bringing up Bodley 46 ms again, I don't think I've noticed this faded double loop gallows t (?) on the right-side margin, f107v.
   

I'm aware ligatures and traces like ꝭ, similar to k, are sometimes used to abbreviate Latin, and the discussion of f/p looking like capitula.
Do we have examples of things like t standing for something in other Ms?