Searching for would pull hourglass stamped 3 15 16

I'm afraid we have no individual inside pull that has those exact specifications. The 88-002 is the first thing that comes to mind, as it is wooden and has the hourglass shape, but I'm afraid it's hole spacing is 6-5/8". Could you show us pictures of your existing handle set? I'm not sure, but we may have another possibility depending on your current configuration. Thanks.