[AgX]

The AH-layer is only mentioned with reference to type 120 and sheet film, not with reference to 35mm.

Foma meanwhile got a new data-sheet with a different text referring to the bases and AH-layers, but still not with reference to 35mm.

Typically 35mm film has not got an anti-curling backlayer, which often contains an anti-halo function. But in this case the AH-layer could be placed on top of the substratum under the emulsion. The optimum location anyway.