You want a birth year pipe. Lots of pipes being made in 1970. Neither Dunhill or Castello come cheap, but of course if you're willing to put the time into the search, you might be rewarded. I would think you don't want just any pipe to mark your birth, that you will especially treasure for that reason when you smoke it. The forums stay busy with discussions about what makes a pipe high-end, and not all such discussions end well. What I'm saying is that a pipe correctly drilled with a shape and finish that appeals might be your candidate despite all the opinions about whether such a pipe is worthy of your purchase.
You might contract Marty Pulvers, Mike Glukler and Pipestud for their help. I almost never buy from eBay sellers, but searching this and other forums would yield names of other reputable sellers. Also, there are many other sellers for your eyes; hundreds, I think.
Good luck.