? What I am saying to you is that you will
> find both a sideways 'n' sign AND a sideways '|'
> sign when USED AS DATES.
Stop brushing aside the practice of dates using a determinative which explicitly tell us a date is being presented. We can very safely infer that the numerals are not dates. By ignoring this you also remove the observation:
Why would they write a date on a construction block?
Not to mention there is the stepped numeral placement.
Your mental contortions are - I'm sure - good enough to fool your readership and publisher because they don't have the deeper knowledge with which to understand the errors you make.
Like I said before, it appears you are of the mind 'if they're dumb enough to believe it, who cares?' Then sell it by using the special out, "Well hey, it's just my opinion."
Snake-oil Scott. Good for you.