The following photos were taken from A. V. Norman's book and the page was blatantly pirated from a web site that is closing down in order to preserve the information.
The Rapier and the Small-Sword: 1460-1820 ISBN 0-405-13089-9.

Below are a few popular hilt styles for the SCA time frame. Not all of these were truly rapier type weapons, but most can be used with modern fencing blades and historic combat styles within the framework of SCA Rapier.

Below the pictures you will find an index of regional/cultural hilt types.

Outer Guards Covering the back of the hand and knuckles.
Inner Guards Covering the palm of the hand and thumb.