All of your dad's stuff is worth something, to someone. For the most part, as NOS supplies of vintage parts continue to dwindle, the remaining parts will continue to increase in value; for example: to someone restoring a vintage tube-radio, they might not want baby-blue metal-film resistors and would be willing to buy some of your dad's vintage carbon-resistor stash for a handsome ransom, to have a "correct" or "authentic" restoration that's fully operational.
As for numbers...
Number 1 is almost always coveted, especially in sports.
The perpetually popular 007 tends to hold value though I think there's some Connery going on there.
Oddly 13 is quite popular though 14 even moreso.
Pregnant 3s are pretty popular with card-players, but can get expensive. Speaking of which...
Expensive numbers...
In Asia, eight is a lucky number, so getting a vehicle vanity plate with "888" on it is incredibly expensive.
A billion, that's often an expensive number, but depends on what it is. A billion grains of sand is worth almost nothing and the more sand you have the further the price gets driven down; but high-grade silica — well a billion would be worth a lot, I imagine, given the current world-wide shortage of ICs.