I have never heard of a Model 696, however the PREMIER was a medium frame hinged frame/break open revolver which was made from mid 1890s up through mid 1940s. There are at least three models and numerous variations within the models. Values will vary from around $35 in poor condition up to slightly over $300 in EXC condition - depending upon finish, barrel length, model and variation. Need more info.
Blue Book of Gun values.
Harrington & Richardson made a top break 7 shot 22 rf called a premier.
Try Cornell Publications for sn book on this company
Cornell Publications
Depending on condition, $30-$120
Seek the services of a good gunsmith
Go to Google.com, from the upper toolbar select images, and enter "Iver Johnson" or "Harrington and Richardson". You should get several images of "top break" revolvers, some of which will be 5 shot.
No sn data I know of.
$100, more or less
There were dozens of different top break models made by Harrington & Richardson. Your best bet will be a search engine, such as Google. Select IMAGES, then Harrington & Richardson. The link below takes you to ONE such image- a nickel plated, top break 38 S&W hammerless revolver by H&R.
Seldom exceed 75 USD
You need a gunsmith