This is what Jan Still renamed them, since it was more accurate;
1920 Commercial (better called
Alphabet DWM)
1923 Commercial (better called
20 DWM)
Essentially, if I may quote Ron Smith
Quote:
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The only noticeable difference that I know of is that the 1920s have 4 digit Ser# with a suffix (Alphabet Lugers). 1923s have 5 digit numbers without suffix.
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