Given the info, I would speculate this to be:
4" barrel Model 19-4 (or possibly a 19-3) blued finish, Square frame pinned barrel, recessed chambers, with the original target style wooden stocks and a set of some form of rubber ones added for use, without the original box, wrapper and documentation, showing some holster wear and a very definate ring around the chamber, ie worn a lot, fired relativly seldom, probably somewhat dirty (no offence meant, I'm very picky and clean to most is dirty to me,,,ultra squeaky clean is my standard,,,ie no, and I mean no, deposits in the area above the forcing cone and top strap<--the real test of just how clean clean is since this is numero uno in the hard to clean dept), noticable ring on the recoil shield around the firing pin, and minor cutting of the top strap.
Based on the assumption that the above is the case here's what I'd pay.(All this also assumes it meets and passes the JMGTBAUG-Jim March guide to buying a used gun- or some variation)
Base price I would start at for the above:
$200.00
Add:
$10 - for box.
$10 - for original docs.
$20 - for clean.
======= These three show IMHO, a gun that was cared for quite a bit. Most of the take em out and shoot-em-hard-till-they-drop-then-get- another-one, people don't hang on to the original box, or get overly excited about cleaning above toe forcing cone. Under the stocks is another good place to look for dirt.
$10 - for less wear.
$20 - for any of the original blueing still on the recoil shield
around the firing pin.
==== It takes a fair amount of .38 Special ammo through a 19 to wear the finish to any great extent. Lack of finish coupled with a small amount of drag line is a good indication the 19 saw a lot of heavy .357's. Lots of drag line, and no finish would probably indicate a lot of .38's.
$10 - for any adjustment of the rear sight from center.
====Unless the sight is all the way to one side,,even then I'd STILL consider it all other things being equal. Only a shooter is going to move the sight to dial it in. A point and banger is less likely to dial it in.
$20 - for nickel.
===only cause it's not as common and I'm a nickle freak.
$20 to $50 - for the speedloaders/ammo,,,maybe,,depends on the brass and if factory or range reloads, and caliber.
8 boxes of .357 ammo at retail is about $100. 8 boxes of .38 Special is less. 8 boxes of range reloads would be a gimme for me since it would mean I'd have to pull the bullets and deprime the cases. In that case I'd pay $20 for the speedloaders.