any information about this 1917/20 unit marked erfurt would be appreciated

[ithacaartist]

Reminiscent of Albert... As some will acknowledge, it is human nature to hang on to the first conclusions to which we jump. It takes an inordinate amount of TNT to supplant existing notions, whatever they are. Although personal experience can lead us down slightly different roads, the beauty of this forum community is its open discussion and the tendency of most issues to reach, at some point, a consensus. The non-existence of hard evidence such as manufacturing and design or bureaucratic records is, at once, what makes this hobby/interest so intriguing and frustrating. Through it all, we're doing the best we can. A truly skeptical (NOT to be confused with cynical) mind is elusive, but a very worthy goal!

I salute the restraint and patience I've seen demonstrated here. You know who you are.