I'm not sure what good the invoices will be. They can be forged way more easily than coins. If I was looking to buy them in the future I would give "the invoices" zero consideration as far as being proof of anything.
Yeah Phil you never want to send the invoice if you sell the coins on ebay. I hope no one selling coins of any signifigant value on ebay, ever gives out their home address. PO Box is maybe $25 a year.
Can you clarify that for me? Are you saying that buying on ebay is ok to your address but selling you use a P.O. box?
If you buy or sell coins of signifigant value on ebay, and you are dealing with a non dealer, do you really want your home address known?