>>10887031 pb
>>10886984 pb
Pic no good. I scraped it off the envelope already and the scan is too small to see detail. Bottom of marker. Copper color fleck that was on front of envelope.
No I didn't because it was my first time encountering something like this but next time if I see something like it again I will take before and after photos, but can't prove anything with crappy photos. I'd need a powerful microscope.
The thing is small enough to fit under a fingernail and would just look like dirt.
It's something to keep an eye on.
https://www.intechopen.com/books/radio-frequency-identification-from-system-to-applications/possibility-of-rfid-in-conditions-of-postal-operators
Today [2013], postal operations have implemented RFID in various closed-loop systems to measure, monitor, and improve operations. For example, RFID is being used to monitor international mail service between major hubs. By randomly “seeding” tagged letters into trays, elapsed delivery time can be measured. This allows service issues to be identified and addressed in a reliable and cost-effective manner.