value of wine

[babybaby]

Hi. I'm having a hard time finding prices for the following wines:

le piat d'or, white table wine, france, no year that I can see. has 71-322 embossed on top of the label.

winterbrook 1993 napa county cabernet sauvignon.

swanson 1990 napa valley chardonnay

ramos pinto porto fine ruby, portuguel, no year that I can find.

loh's estates 1991 riverstone monterey chardonnay.

and here's the real stickler:
carl jos. hoch paradiesmilche bottled in germany, no year to be seen anywhere on the bottle.

due to the lack of on-line presence of the afformentioned wines, I assume they are not worth anything objectively.

Any price estimate for any of the above listed wines would be very helpful.

Thank you for your time-

bb