Help with mark on bottom of pottery , and any info on the others :)

[Jr1004]

Not sure who this mark is on the first one, may not be significant, but its driving me crazy trying to find it. Also, not sure is the dark brown pot a modern pot? I cleaned up the bottom trying to find a mark, to no avail...and I'm sure the tanish pitcher with black symbols is probably modern ...made to look more old... but just in case I thought maybe someone could help ID these. Thank you

 

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