Furniture, Wood and Cabinetry Finishing - Veneer on mahogany chairs

I've inherited a mahogany buffet, dining table, and six chairs. It's all in pretty good shape except for the backs of some of the chairs. The veneer is chipped off in places, i.e. the corners of the back and top of the chairs. My inlaws used the set in the kitchen for many years. The set is about 75-80 years old. Otherwise, the veneer seems to be in fairly good condition. My questions is whether I should try to smooth and sand over the rough edges, then refinish, or do I need to get new veneer on the backs? I would worry about getting a new veneer to match the table and buffet. Also, any help with refinishing with veneer and tabletops would be appreciated. Also, when stripping and refinishing the table, should I keep the extension in, or refinish that seperately? Thanks!

Solace:

Whether you replace the veneer or just fill in the missing spots, you'll have a color match job on your hands...the choice is yours.

As far as refinishing is concerned, veneer is wood, albeit a thin slice. Treat it as wood, with the caution to go easy on the sanding. You don't want to cut through the veneer!!

I usually strip a table in pieces - one section at a time, clean it thoroughly, then put all the pieces together (insert leaves, etc) to stain. This way I'm assured of color uniformity throughout the piece. After staining, I would remove the leaf (leaves) and finish the table in sections - it's easier.