In most countries, a letter of no record can be gotten from the Police. There may or may not be a fee charged.
A 'permanent record' of a business letter is a physical, hard copy (photo copy or print out) made of the letter before it is sent. Today, many people rely on the letter kept in a computer file as a 'permanent record'. Which is the best practice is up to the person (people) responsible for keeping the record.
Write.
DAK Industries manufactures a record turntable. Denon Electronics manufactures a record turntable.
RCA
Honestly.
The purpose of a letter is to communicate. A letter is written when it's not possible to communicate in person, by telephone or email, or to have a written record (documentation) of the communication.
I received letter of credit from my customer how i have to enter my entries
IOU
IOU
tab.
data sheet
"Please Read this Letter," won Record of the Year at the 51st Grammy Awards.