Germany #266 Double Surcharge?

Hi people-

So Im cataloging germany, and find this...

GER#266



GER#268


I know the pictures aren't great, but it was as close as I cculd get.
Is the 1st pic a double surcharge?
Note the "8" and the "S"
The printing is much deeper on #266
The 2nd pic is the same surcharge on a 1000 m (#268).
The surcharges on the rest of the collection look like the one on #268

I dont really know too much about this yet, and as always appreciate the help

Thanks

Sorry, but no, you do not have a double surcharge. The overprint devices do suffer wear over time. However, you might have a minor surcharge variety/flaw. I do not have access to any catalogs that comprehensively list minor surcharge varieties.

To safely call a double surcharge, you really need clear separation over the whole of the two strikes, like on this surcharge (not the overprint) from Cochin State:



Can't give you a Scott number, but it's SG O103b - the SIX PIES surcharge Official of 1949.

You can also find 'chatter' or 'bounce' strikes, where the overprint or surcharge plate has bounced after striking the stamp, giving a fainter second overprint which is nearly coincident, like on this ON C G S overprint, also on Cochin



(This is the 1 Anna 3 Pies Official of 1947, SG O82a. Gibbons list it, for reasons best known to themselves - but they shouldn't!)