Tricuspidate Gemini Rings

The 2006 issue of the Journal of the Society of Archer-Antiquaries has an article by Signor Bruno Bonora of Granarolo Dell'emilia (Bologna), Italy titled "Tricuspidate Gemini Rings, otherwise know as 'Bow-Pullers': the results of five years of experimental archaeological research with a detailed classification".  In that article Signor Bonora describes his work to determine if the device could be used effectively as a bow puller.  His conclusion is that it could be.

Although all of the "bow-pullers" that have been recovered to date have been metal, usually bronze but sometimes iron, Signor Bonora suggests that it was likely the wooden ones were used but that they have not survive.  

All of the "bow-pullers " that have been dated have indicted they were used between 400 BC and 400 AD and the greatest concentration of them have been found in the northern Italy Etruscan-Celtic areas.  

Although I am planning, with the help of  Panther Vale's Lady Ruadhnait inghean Ruaidhri and Lord Eol ua Tadhg , to cast a bronze version of the "bow-puller" (Signor Bonora has agreed to provide the dimensions) I decided it would be fun to work with wooden tricuspidate gemini rings.  Therefore, I have built three of them and have begun to use them for shooting a bow on a limited basis.  The rings are made with an ironwood base and birch archery shafts for the cuspids.

No, I'm not very good with it yet but it is an interesting way to shoot a bow.