I would appreciate some help with the hallmarks on this spoon. It is bottom marked which apparently was carried out until 1781. The maker appear to be H.C (Henry Chawner?). The lion passant is visible. There appears to be the letter “J”. Could that be the inverted date letter representing S for 1753-1754? That would be a bit early for Henry Chawner probably. I cannot make out the last symbol(s).
What are your opinions on this? All responses appreciated.