The attached link gives you access to a database of helmet lot numbers which I have started in 2006.
The helmets in this list are all authentic WW2 helmets , I checked each and every one of them and many have been posted on the German Helmet Walhalla forum. All errors of course are my own.
THIS LIST IS A RESEARCH TOOL AND DOES NOT SERVE AS A GUARANTEE OF ORIGINALITY
VISUAL INSPECTION IS THE ONLY WAY TO AUTHENTICATE A HELMET
UPDATED 26.05.2022
SEVERAL EXAMPLES OF LOT NUMBER TWINS
2 Q 66 M35 Double decal Luftwaffe helmets with 1940 components. Lot number 4780.
4780 in the Lot number list :
| M35 | 4780 | Q 62 | SD Heer – reissue | steel liner |
| M35 | 4780 | Q 62 | SD Heer – reissue | steel liner |
| M35 | 4780 | Q 66 | SD LW | steel liner |
| M35 | 4780 | Q 66 | DD LW | steel liner 1940 |
| M35 | 4780 | Q 66 | DD LW | steel liner |
2 ET helmets with identical lot numbers (999) , one is Luftwaffe and the other a Heer one.
999 in the lot number list.
| M40 | 999 | ET 62 | SD Heer | steel liner |
| M40 | 999 | ET 64 | SD Heer | steel liner |
| M40 | 999 | ET 62 | SD LW | steel liner |
Photos courtesy of RonR
Here’s a another example of 2 SE Polizei helmets with an identical lot number (7187) and are also of the same branch (this does not need to be the case).
7187 in the Lot number list :
| M40 | 7187 | SE 64 | DD Polizei | steel liner |
| M40 | 7187 | SE 64 | DD Polizei | steel liner |
Photos courtesy of Mr_S
