ID Help On 2c Washingtons Coils V Perf 10 Unwatermarks

i as always would appreciate id help on 3 2 cent washington coils

they are all perf 10 vert
i can not see a watermark on all of these stamps.

also...i think there are joint lines on 2 of these stamps.
does that add anything to the value of a single stamp with a joint line?

i found it interesting about the bottom stamp...the lips seems abit different

thanks for all your help as always

i will try to make a better scan...i do not think it is really showing the detail very well

i hope these are better scans

Top stamp appears to be type-2, so if unwatermarked this is the rare SC491 - however sometimes watermarks are hard to spot and this needs formal certification for identification - it is just as likely a SC454. It is also possible that the scroll line at bottom right is partly there, or scraped away - so a type-3 identification is not ruled out.
If the scans of the 2nd and 3rd stamp were just as clear, we could probably identify the type, but obviously not the watermark. These scans are not clear enough to make the identification,

ps; I think most collectors would say the presence of the joint-line would slightly decrease the desireablilty.

thanks for your thoughts.
i understand about how stamps may be altered
i guess I will have to send them away..
i guess I do have hopes but who really knows until certified