I have an older custom made recurve bow: 47# at 28" What is a good arrow rest? I'm considering one of the rubber flipper type, but am not really aware of what is available. I don't want to drill any holes in the bow. Thanks.

You usually don't need a rest. Shoot right off the top of the grip. It should have shallow curve right above the grip, covered with leather or mole skin.

It depends. Most recurve shooters now shoot off the shelf with no rest. If you shoot instinctively this works well, however if you're a gap shooter you might want to get the arrow higher. Shooting off a rest brings the tip of the arrow more into your line of sight where you can use it for aiming. It also works well if you shoot three fingers under the arrow instead of split fingers. J_jola is right if you shoot off the shelf it should be padded with something.

cheers

There is a trad magazine I believe it is called three rivers that sells a seal skin rest with the hair still on.
They work very well.
Or you can take about any old piece of leather and cut your own and glue it on.
Personally I would not shoot a recurve or longbow unless it was off the shelf instead of a flipper.

I've always shot off of the shelf. Of course, I've always shot feather fletchings from my traditional bows. If you intend to shoot vanes, you'll have to have some kind of elevated rest.