He had many great smoking pipes, mostly moderately priced factory pipes, but good brands and good smokers. If you want to have a selection of four our five (three or four, etc.) professionally restored, I'd pick out some of the ones that probably cost a little more. I'll let others weigh in on which. The rest will probably respond to some methodical cleaning, if you'd enjoy doing that as a project. Estate (used) pipes are fairly popular if you reach the right demographic at a flea market or online, if you want to sell off the excess. The most obvious needy aspect of these are the oxidized stems. Some will respond to polishing, and there are plenty of instructions on how to do that. Some Forums members have taken pipes with stems that look like these and brought them back to looking nearly new. Other stems may respond to polishing but will re-oxidize quickly, even on every smoke, and they'd need new stems, if cosmetics is any consideration. For now focus on choosing a select few, the best of the collection, and have them done professionally, to see what can be done, and then see if you want to try your hand or simply store or sell the others, I'd recommend.