Can anyone identify this conversion?

[leo765]

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In the attachments i have included as many pictures as possible of this unidentified conversion. The only leads i have are as follows:
This cue was in an instroke 2x4 case and was purchased used from a shop in van nuys ca.
This cue came with a Ed Prewitt custom and was originally thought to be a prewitt conversion but was dismissed by Ed as one of his own.
The only other clue I have to the origination of the cue is the accessory of a Dan Trogdon wooden tip shaper. This cue plays lights out imo and is a full splice conversion. I have other stats on the cue but i doubt they will help to identify more than the attached pictures. Thanks for any help

 

[ideologist]

That square bolt in the bumper is what Dufferin used for many years.

 

[leo765]

That square bolt in the bumper is what Dufferin used for many years.

Yes that is what tony at tiger products had concluded that it was most likely a dufferin house cue conversion. The cue is well made and i would like to commission the builder to make another for me. I was hoping some of the builders that read through these forums would recognize it as one of thier own. Thanks for that input and taking the time to post it.