Quoted from CaptainNeo:rails like this are always just hammered in and poke through the back. Sometimes the hole doesn't always make it through that last layer of wood, but it's close and you should be able to find it. Pound it up from the back.
EM's are different because you are pulling them completely out. They have that butterfly on the end and can chip out the wood when fully taken out. These are smooth all the way through.
This has not been a good idea on some games I have seen in the past! I would not recommend this...