How do you decode raylle wheels?

[GoldBoattail455]

I have 15 raylle wheels and was told some were the '71 Big car wheels and others are '66 Riviera and Wildcat. How do I tell what I have exactly? :Do No:

Here are some codes but Im thinking I'll have to measure to figure out bolt spacing?

J 15x6-JJ 24 E
895 M4 1
3

H 15x6-JJ 18 D
95 M4 3
2

L 15x6-JJ 24 A
895 M4 1
2

K 15x6-JJ 22 D
895 M4 2
6

Also this was on the inner rim edge:

MI 10 27 WK
/6\

[gstewart]

is the bolt pattern size, for example 5 x 4.75 or 5 x 4 3/4 or 5 x 5.0, not stamped on the drop centre of the rim also? my original 14 x 6 (a-body) rims also had the stamping 4 x 4.75, besides the jj code stuff. my 72 gs was built in oct 71.
the date code is stamped on the lip of the rim as u have shown. looks like oct 27, but year ?

[GoldBoattail455]

Gerry,
What/where is the drop center of the rim? :Do No: Thanks for the date code info, I should be able to do the rest.

[Nailhead]

Rob,
All of the wheels you listed are of the type used from 1971 and later on full size Buicks with the 5x5 bolt circle. These are easily identified because the center cap sticks out higher than the edges of the wheel. Can't help on date codes.
John
:beer