What is the value of a 1907 Deutsches Reich 1 mark coin?

sammler.com, a major German collectibles site, lists the following approximate retail values as of 06/2014:

"A" mint mark (Berlin):

Slightly worn - US$5.40

Almost no wear - US$5.40

Uncirculated - US$20.30

"D" (München [Munich]):

Slightly worn - $5.40

Almost no wear - $6.80

Uncirculated - $21.60

"E" (Muldenhütte):

Slightly worn - $5.40

Almost no wear - $10.10

Uncirculated - $33.80

"F" (Stuttgart):

Slightly worn - $5.40

Almost no wear - $6.80

Uncirculated - $32.40

"G" (Karlsruhe):

Slightly worn - $5.40

Almost no wear - $12.20

Uncirculated - $40.50

"J" (Hamburg):

Slightly worn - $5.40

Almost no wear - $27.00

Uncirculated - $128.00