Most likely, your pipes do not have much value, unless you want to remember your grandfather. In his time, men bought a pipe for $50 or less (this is in today's currency) and smoked the pipe until it was worn out. Then they would buy another one to replace it.
Très probablement, vos pipes n’ont pas beaucoup de valeur, sauf si vous voulez vous souvenir de votre grand-père. En son temps, les hommes ont acheté une pipe pour $50 ou moins (c’est dans la monnaie d’aujourd’hui) et fumé la pipe jusqu’à ce qu’il ait été usé. Ensuite, ils achèteraient un autre pour le remplacer.
Though it's true that there is an active market in used pipes, referred to as estate pipes, most of the more standard factory pipes go for low prices. The high end of the market, pipes that are often hand-carved by pipe artisans who are known names, can command high and very high prices, but these are a separate high end market. They do give people who inherit good old standard smoking pipes the idea that their pipes are inherently quite valuable, and they rarely are. As with fine art paintings, the average person not devoted to the profession should only buy what they want to use (paintings to hang on their walls, pipes to smoke) and not expect any investment value or resale profit. I'd keep those pipes as mementos of a loved family member.
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