Rare Tranter Model 1863 Single Action Revolver

This is a Tranter Model 1863 Single Action Revolver Chambered in .455 centre fire. The majority of the model 1863’s were a double action with only a few hundred being produced in single action.  Approximate serial number range for the single actions are between 4000 to 4500.  This item being serial number 4010 would make it one of the first to be made of this model. The single actions were produced in .442 rimfire, it is not known how many were produced in centre fire (possibly 1 of a kind) making this even more rare.  This item has a 6-1/2” barrel with Cogswell & Harrison London retailer address engraved into it.  Birmingham proof marks can be found on the barrel and frame. The firearm retains around 85% of the original finish. The checkered walnut grips are in excellent condition with a few very light dings.  Mechanically it is in excellent condition and functions as it should.  This is a very attractive English revolver that would fit well with any antique collection.
This is a antique so no PAL is required for purchase. Buyer must be 18 and able to prove it. Shipping is available at buyers expense. All used firearms should be inspected by a competent gunsmith prior to any form of use.