In November 2020, our firm sent a Registered envelope containing a CAC coin to a destination exactly 20.5 miles away, as per Google. It arrived 4.5 months later. Yes, 4.5 MONTHS!
We attribute this absurdly long delay to our use of a small envelope instead of a HUGE box as I recommended in an earlier thread. Post offices hate having space hogs in their safes, security cages, and locked offices, so large boxes invariably make Registered Mail travel much faster in our experience.
We mistakenly assumed that we could let our guard down for a mere local shipment. After all, earlier in that same year the transit time for another Registered envelope sent 22 miles in the opposite direction was but 21 HOURS.
For the missing envelope, we filed an insurance claim with USPS 14 days after shipment and received a reimbursement check four months later, the day after the package was finally delivered. We returned the check to USPS with a sarcastic note thanking them for their prompt delivery.
This year, all of our Registered mailings have arrived in one to six days except one that took eight. All were large boxes. Coincidence?
(Upon request, I will provide the mod with the tracking number and documentation via private message).