Here's a pic relative to this "pipe" topic:
This was part of the display on the 2nd table at the Collinsville ( Illinois ) artifact show. I soon found that almost EVERYBODY ( except me ) had a pipe or two on display, there must have been hundreds of all ilks & ages...



Red, you might check into displaying at next years' show.....I did NOT see one single Bird pipe like your collection..

i have found peices of clay pipe in mounds that put out primarily perds so i wonder how it is that somthing so much younger could end up in a mound that is so old just a question to get your mind bending

There are any number of explanations for how 150- 200 year old clay trade pipes could be found in the same "mound" as 2000-6000 year old Pedernales points. I wouldn't think they were being found at the same level but I know nothing about your site or the circumstances so I can't give you an opinion. We see a similar situation with the so-called Comanche points............collectors found Pedernales points on the site of a known historical Comanche campground and assumed the Comanches made them even through the Comanches didn't show up in Texas until the 1700's. The site we dig here on the farm is sandy soil with no stratification and all of the artifacts are right down against the clay layer. A combination of burrowing animals, gravity, and the elements results in square iron nails from the 1800's being found along side Paleo points. Another possibility is that your broken clay pipes are not trade pipes but something Indian made and much older.