Efke 820 Question

I have some rolls of Efke 820, expired about 2013 or 2014, that have been in the fridge. I don't see the word "aura" anywhere on the boxes (120 and 35mm). I am wondering, is it likely that these do have an anti-halation backing? I am thinking of using the 35mm in a Konica Auto S (not the S2) but it has a dimpled pressure plate. I could use it in my Rollei SL35 instead, which has a smooth plate but of course then I cannot see through the SLR finder - unless I can use a Red 29 filter? Any help is appreciated.

If it doesn't say aura, then it has the AH layer. They made two types of 820.

Andrew O'Neill said:

If it doesn't say aura, then it has the AH layer. They made two types of 820.

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Thanks very much!