See: http://www.gun-data.com/tour7.html this may help you.
No published sn data
One recently sold for $101 in online auction.
You are able to fire .22 Long Rifle or .22 shorts.
No published sn data that I know of.
No published sn data.
No sn data available.
No published history
25-100
You will have to check with the BATFE
No available sn data in the public domain.
The Revelation Revolver Model 99 was produced in the late 1960s to early 1970s. It was manufactured by the H&R (Harrington & Richardson) company for the Montgomery Ward department store under the Revelation brand. The specific production years can vary slightly, but it generally falls within that timeframe.
No open market published data.