Found this on his web site: “ A scarcity of canning lids, causing a frustrating market condition for home canners in the mid 70’s, led to exploring the feasability of a plastic reusable product. After various prototype experiments the current version of TATTLER Reusable Canning Lids was conceived. The product has proven to perform exactly as originally intended, to fill a need for those who wish to have a product on hand they can count on year after year, Made in the United States of America. You will never regret becoming one of the countless satisfied users of this product.’
Don’t remember the details of the wage & price control fiasco, but there was a resurgence of a desire to can stuff due to shortages caused by the controls. Didn’t take long to clear the shelves of product and nobody was geared up to make any more.
I suspect we will be buying some of these to avoid any possible favors Obama has in mind.