Information On German Expertiser Dr.dubb

Received a stamp, Germany, Saar, 3II, VF NH, Signed Dr. Dub, 1920 3Pf brown, Type II. Now, I looked through my Scott, Classic, Specialized Catalog, in the Saar section to identify the stamp. Next I looked in the German Michel Catalog to find an German expertiser by the name Dr.Dubb. No luck. Does anybody know anything about this Dr.Dubb?
Any help would be very much appreciated befor I spend a lot of good money.
Thank you for your help.

Hello,
Check this website: https://www.filatelia.fi/experts/
This site has info on Dr. Dub, including remarks on his signing Saar stamps.
Kind regards,
seafarer

Hi Seafarer, Thank you for the really quick answer. Success, he is listed there.
Thanks again, Peter

Seafarer -----I believe Dr DUB was a excellent expertizer of Germany and related areas but later in life he went over to the DARK SIDE and started forging overprints, especially Upper Silesia stamps and signing them .I hope I remember this correctly it was 45 years ago at the Austin Stamp Club in Chicago I had this discussion with Dr. Meteka.



His name is Dr. James J. Matejka ---He was a medical doctor with offices in downtown Chicago and I would send all new employees to him for a physical as required by our firm .

Unfortunately you can't trust his promoters mark. Dr. Dubb also had his proofer stamp forged.

Floortrader is quite correct. Dr. Dub marks need to be re-examined and verified along with the stamp.

Confirm first and then buy!

Over time, you will find a lot of German area stamps signed by Dr. Dub. Again, it's a pretty worthless marking.

Michel catalogs only list the current active Bundesprüfers. Twenty years ago and earlier, the names could/would have been different, yet the signatures/handstamps are still valid. Of course, over the years a few experts have had their handstamps forged or stolen.

here you see a true Dr. Dub at the bottom, at the top forged. the real ones are purple, or a beetle. but as the others said, even with a true signature one has to be careful. but perhaps the image gives you a first hint:

http://www.philaseiten.de/cgi-bin/fb.pl?ID=3309

Dr. Dub expertized a lot of stamps in my area of interest too, Soviet Occupied Germany.

Just to echo what has already been said, if your purchase is contingent on expertization, I wouldn't rely on Dr. Dub. I would recommend a trip back to BPP for reexamination.

Dan