I guess that the you don't want to pay for the shipping, but

[dsk]

  I guess that the you don't want to pay for the shipping, but I  am cleaning in the basement, and do not need these intercoms. I  will put them up for sale for about $10 each next week. (but only on a Norwegian page finn.no

The only one who may be worth more is the lower right one, a 30 line Elektrisk Bureau intercom maybe as much as 100 years old.
dsk

[dsk]

If you are interested, or just have questions, please tell me. 
dsk