An unusual flintlock sporting gun built for a youth

Firearms,Long Guns and Rifles
An unusual flintlock sporting gun built for a youth, by John 2 Harrison c 1760-1770. The two stage 12 barrel is swamped, and signed HARRISON=GOODMANSFIELDS=LONDON on the octagonal breech,with London proofmarks together with the foreigner's mark, and is fitted with a gold lined vent, silver foresight and swollen silver ramrod pipes with a tear drop shaped iron ramp for the ramrod tip. Figured walnut halfstock, the engraved lock with a sliding safety bolt is signed HARRISON upon a foliate banner. Engraved steel furniture, the trigger guard finial is in the form of a basket of flowers, the buttcap tang is engraved with a trophy of arms. The stock is extensively decorated with silver wire inlay including the owner's initials W.H.,an elaborate "sideplate", and a shell at the fore-end. Some honest wear overall, the baleen ramrod now missing, this gun is of good quality.
Barrel length 25¼" (64cms) Overall length 40½" (103cms)
John 2 Harrison is recorded as a gunmaker in Swan Court, Mansell Street in 1759 and Swan Street, Minories from 1774 until his death in 1779