Valuation/Opinion? Air Arms TX200 Mk.1 No.30 - 1st day's production?

[slug-gun]

Opinions of worth please and perhaps a valuation for:

One of the very earliest Air-Arms TX200 Mk.1 air rifles, bearing the serial number 00030, and bought apparently 25 years ago. The action near new in .22 calibre and the beech stock excellent, would this be possibly the first day's production of this iconic air rifle.
Complete with the early paper 'folder' of instructions.
Is there a premium for such a low numbered example? Or is it just another secondhand TX, albeit in lovely condition?
.

[derekj]

The earliest model TX200 was the few prototype's made by Ken Turner, one being a drop dead gorgeous deep blued SR . It might be worth a search for any of the early rifles.