OK, It's been another year!!!!! HOLY CRAP!!!!!!
not everybody has lost interest!!!
Has this SOB been solved

?

WOULD THE 'ADMINS' please tag and end this with the answer when one is proven

?
Almost seems like a "PonyExpress" concept, something thought up as a complicated solution to a simple problem that was obsolete as soon as it started. Aluminum was too expensive before a certain (?) period for this to be very early. The stamping method and detail are refined enough to suggest early to mid 20th century.
I still wonder if it isn't a ship date counter or an altimeter recorder for early weather balloons, or a fence counter?
Seems like the kind of thing that might have been replaced by an assembly line /spool counter or a paper tag method.
All you people,,, ask your parents and grandparents!!!!
I'm still in the 'manual' machine gun belt tracer counter loader mode (WWII) ours or theirs.
Yet still.....
That it hasn't been "set" might indicate the 'setter' was too busy, to worry about being accurate, probably not RR live freight.
The area might suggest something from the Japanese balloon bombs, in english to prevent identity of the source, yet to be identified after the invasion.
Either way, it's an unset recorder for one-time use or a process counter to be set and reused for constant count.
That it is still unidentified leads me to believe it is foreign or a method of solution that was almost immediatlely obsolete.
Do da' word obsessive mean anything?
Attached to a board, a MG belt could be rolled over to the stop (bent tang) and a tracer inserted, under the KISS principle, the same could be accomplished by a board with nails to space the 'gap' between tracers. Inexperienced MG'ers use every third tracer, then 10, and every 30th for charted fire from concealed positions. All of which belts could have been gauged on a board with nails as spacers or by eye instead of contraption.
The tangs still look as if some kind of 'cage timer or counter', maybe thought to be an improvement on a written calendar that never caught on or became immediately obsolete.
As is obvious, I have no problem with ignorance over time. The 'Knowing' is the goal.

james