Interpretation of Jewish mysticism (Kabbalah) in the Kabbalah tradition, The number and shape of letters may be given symbolic meaning, but such interpretations fall into the category of mysticism, Not a biblical Canon or linguistic consensus.
ק(Qof,100):Symbolize the sacred(קדושה,kedushah)Or the end times(קץ,ketz)。
צ(Tsadi,90):Symbolize the righteous(צדיק,tzadik)Or hunting(צוד,tzud)。
ד(Dalet,4):Symbolize humility(דלות,dalut)Or the Four Corners of the world。
Taken together, the possible metaphor is " the divine righteous leads the humble ", but this is only conjecture.
The red phone booth may represent some kind of warning education.
Coin means money is not everything,something you can't buy with money.