L100 Grill Frame Dimensions

[majick47]

I remember reading someplace that the later L100 grill interior dimensions for the foam/cloth were a different size than the earlier L100, is that true? My L100 century with black JBL foilcal #134793A & 134825A. Might be switching frames if the interior dimensions are the same.

[majick47]

Did a search and didn't find any info. The interior dimensions of my L100 Century frames for the foam/cloth is 14 x 23 1/4.