One form of the heraldic "Cross Voided" (technically a "cross voided throughout").
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Erin_Silversmith" title="User:Erin Silversmith">Erin Silversmith</a> assumed (based on copyright claims).
3 September 2006 (original upload date)
No machine-readable source provided. Own work assumed (based on copyright claims).; based on <a href="//commons.wikimedia.org/wiki/User:AnonMoos" title="User:AnonMoos">User:AnonMoos</a>'s <a href="//commons.wikimedia.org/w/index.php?title=Special:Upload&amp;wpDestFile=Cross-Voided-small-.png" class="new" title="File:Cross-Voided-small-.png">File:Cross-Voided-small-.png</a>