I have been searching for this for quite a while. Recently, this mark has appeared in this thread on an early Heer dagger by Tom K.
Not quite an SOS purchase, my good friend Stingray found this a couple of weeks before the show and gave me a good heads up.
There are three Holler used maker marks on Heers and on Luft2s.
The first mark is the one with 19 ticks on the thermometer on the right hand side. This is the earliest mark used by Holler on Heers and Luft2s.
The second mark is the 17 tick mark and the last mark is the 11 tick.
John
