Here's my situation. I sold some toys/other items gifted to me in the past when I was younger. Likely around Christmas or my birthday I don't remember when. They never gave me a receipt and I do not know the exact date. I do know that I had these items longer than one year. What should I put as the date if I don't know and can't prove when I received each item? Also if I don't know how much they paid for it when they gifted it to me how am I supposed to figure out if it is a capital gain or loss?
