Possible Clues:

• I'd connect somehow with another one falling at the same time
• Simultaneous
• In agreement with firm having an event
• 'At the same time, comes across change to identification in local currency
• At the same spot mint a little new money containing one old penny
• Maybe it's Penny, the detectives and the specialist in sync
• One old penny among two other bits of money in the same place
• Correspondent at Crown Office event
• Correspondent finds cash and passport among foreign money
• Two pennies, perhaps, I had hidden in the same place