No such maker. However, there is a firm called Harrington and Richardson and they did make pistols in 38.
You will have to contact the maker.
Request a manual from the maker.
Ask a gunsmith for help or ask the maker for a manual
The first pistols were made as early as the 15th century, but their creator is unknown.
Contact the maker for a list of repair centers.
You will have to provide the name of the maker.
u You will have to contact the maker.
A derringer is a firearm, named after a misspelling of the American pistol-maker Henry Deringer.
Need the name of the maker to answer.
Depends on what the maker says.
Not unless the maker says it is safe