European Hat Sizing

Does anyone know if a hat size 4 1/2 is indicative of an earlier form of European hat sizing? Are any charts available?
Thanks for any info in advance.

4 1/2 is a size 7.

Um, I think that's all I know.

There was a thread that laid it all out somewhere, but it might have been on the old Fedora Lounge.

International Hat Sizes

American English French Metric
6 *** 5 7/8 *** 1/2 *** 48
6 1/8 *** 6 *** 1 *** 49
6 1/4 *** 6 1/8 *** 1 1/2 *** 50
6 3/8 *** 6 1/4 *** 2 **** 51
6 1/2 *** 6 3/8 *** 2 1/2*** 52
6 5/8 *** 6 1/2 ***3 *** 53
6 3/4 *** 6 5/8 *** 3 1/2 *** 54
6 7/8 *** 6 3/4 *** 4 **** 55
7 *** 6 7/8 ***4 1/2 **** 56
7 1/8 *** 7 ***** 5 ******57
7 1/4 *** 7 1/8 ** 5 1/2 *** 58
7 3/8 *** 7 1/4 *** 6 **** 59
7 1/2 **** 7 3/8 **** 6 1/2 ** 60
7 5/8 *** 7 1/2 *** 7 **** 61
7 3/4 ****7 5/8 *** 7 1/2 ***62
7 7/8 *** 7 3/4 *** 8 *** 63
8 ***** 7 7/8 *** 8 1/2 *** 64

sorry this did not work out just right...it won't take the spaces...but the info is there if you can "read between the lines"

*** OK I went back in to ad **'s hope it clarifies....

Thanks guys, that tells me I'm not gonna bid on this great looking fedora. I'm a 7 5/8, and that's too big a stretch.