There are many ways that you can access great carpets, usually those with some value. When you have valuable stuff collected, these could toward your creating a historic carpet collection. This specific item is also one that organizations like history clubs can make up, or perhaps museums and government agencies which protect historic homes say.
History here does not only mean items that have appreciated in value. It will also mean that there might be real history related to any item that is collectible, like for instance those items which have been used in the White House by past presidents. In fact, this institution itself has its own collection build through all administrations.
The government too will have agencies interested in or having their own collections. Some collectors too have their own private things, which often are built up with hard work and real focus on the collecting. There are many who keep these private and these may or may not come out in the future in estate auctions for instance.
You could have lots of options where these are concerned. You can go to any auction that may come up, usually because there are any number that do all over the country. You have to choose well and perhaps have access to brochures for the items that may be featured and you can choose which to attend based on these.
You also have to be aware of how other collectors are behaving. Usually there might be a run or trend for specific items. One month it could be for Bokhara rugs, the nest it might be for items made by Aubusson or perhaps those products produced by a certain city in a certain era, but you may need to ride any trend if it occurs.
You can of course wait for the specific stuff that you are collecting. Usually you should concentrate on one kind of item so that your efforts can be more effective. Because collecting anything and everything will mean not being able to get traction on the items that can be classed under one category.
For things which history, it might be best to have connections with historical societies. Even small town ones can surprise with the items they can have, because a lot of things and persons may have gone any which way through the places in this country. Also, a lot of things are available in those cities which have figured a lot in the momentous events of the past.
For this country, this will mean many cities in the Eastern seaboard and Westward. But the spread of such items may not anchor any specific item in one city or place. This can travel anywhere, usually with an owner or a family that has had it for generations.
Families who have participated in the great events for this country too may have their own stuff. And you could people watch on these. Because there is no telling when their heirs or estate managers can decide to market stuff.