Geoffrey Butler Track Bike Questions

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Does anyone know something about these geoffrey butler track frames?
Sended some emails to geoffrey butler http://www.gbcycles.co.uk/ but they did not answer. Its hard to find any info about these frames. I really like my new frame, just got it. Somewhere got info, track drops are made by zeus, not sure of it...

It has 26.6mm seatpost size and it has a reynolds 525 sticker on seat tube. No serial numbers above at the bottom bracket.

Does anyone have geoffrey track frames?

Take some good photo's and see if there is a serial number anywhere and email them to George at GB (Give him a call first) George was able to date my frame quite accurately and should be able to help you as well.

I used to race on one of their chunky stay Colombus frames with a cut out BB, have never seen one since, have you?