In the U.K. an Antique is anything 100 years old and older. This is why a lot of businesses advertise the fact they sell Antiques and Collectables as if they did say just "Antiques" they could be prosecuted if the sold anything under 100 years old as an Antique. I know many Antiques leave the U.K. for abroad with no problems. There are some exceptions, such as pianos with ivory keys and any ivory made after 1947.
I did think some countries such as Turkey would be more strict with exporting antiques.
I have no idea about Turkish Antiques, but did ask a Turkish friend about Turkish Antiques and he said they were rare in the shops and lots of "Antiques" are reproductions. I know that some of the carpets could be over 100 years old and they are exported all the time.
I also think Turkish Antiques could be bought in the U.K. Auctions cheaper than in Turkey. I have seen some lovely vases, bowls and plates. I am often tempted to buy and bring them back to our place in Calis.