[Jake Blake]

It's just trying to make you toss all your coils and buy new one made in China. Cause it itself is made in China.

Oddly-enough, that is not true for these specific coils....these were probably wound right at the location
where I bought them from : Highland Heights, Ohio.  This one , I thought, was around .5mH,  but turned out to be .28 mH. ( I say 'thought' because I've removed wire from it in a guessing game). This resulting value would only be good for a crossover point of about 5kHz , . . . too high for my preference.

But your point is well-taken.  :-)  I know a few capitalists that are not beyond such things.

Surely, you're not suggesting these little cardboardy ones in the radios were  made in China in 1939 either.   

The new  IF transformer  I bought as a possible replacement has an fragrance of Moo Goo Gai Pan, and measures  8.22 mH for the primary, and .185 mH for the secondary.... sure hope that secondary is high enough.  It's tiny.