More warehouse digging has unearthed a number of these Millers Falls replacement blades for tape measures. How long have they been here? I don’t know. Will they fit in your tape measure that has a broken blade? Maybe. Do I know anything else about them? No.
What I can tell you is that they are brand new in the box, that they are Made in the USA, and they say, “Universal Model. Fits All Brands”. Just keep in mind that this was advertised at least 30 years ago. Not sure how tape measure technology has changed since then. Comes in 1/2″ x 8′, 3/4″ x 12′, 3/4″ x 20′, 1″ x 25′ and 1″ x 30′.