This is a Pattern 1863 Whitworth sold out to the Trade and marketed by Hollis after the bayonet bar had been removed. Apart from that, this appears to be a good sound P'63 at a reasonable price. If anyone buys it, please tell me the serial number, date and prefix letter to be found under the breech.
http://www.henrykrank.com/fpmr119.html
This is another Whitworth from his earliest production. It is #132 which was sold through Thomas Del Mar in London a few months ago. I have a note that the hammer head was broken and the hammer now on it may be a replacement. These early 39 inch Whitworths are rare. The price is not too bad either.
http://www.henrykrank.com/fpmr131.html

