I have a accumulated 5 McLaughlin CD 122 insulators in various colors of green.

The two pictured on the left are embossing index number [020]

The third from the left has a number 1 in the back of the wire groove but no letter R.

The forth and fifth from the left have a 5 in the back of the wire groove but no letter R.

So I don't know what embossing index numbers those three are.

I included a 7-up green Hemingray insulator on the right for color reference. The last McLaughlin insulator I bought was listed as 7-up green. It's a different color. Is McG 7-up green the same as Hemingray?

What embossing index numbers do #s 3,4 and 5 fall under?

I find a number in the back of the wire groove but no letter R. Where is that confounded R ?

And Here's the BIG question, what colors are these insulators?

Thanks, Randy