If you would like to authorize someone to redeem pawned jewelry on your behalf, here is a sample template you can use to write an authorization letter for pawned jewelry.
To [Shop name]
Dear, [Owner name]
I, [Your name] am a customer of your store. I had pawned my [Item name] to your store on [Date]. I wish to redeem this item however, I am unable to visit your store personally.
This letter is to authorize my mother [Mother’s name] to collect this item from your store on [Date]. Any inconvenience due to this is regretted.
Thanking you for your cooperation.