A Handful Of Japanese-Like Stamps I'm Trying To ID

Any help id-ing these is appreciated.

1., 2.



3.,4.



5.-7.

These are all Japanese revenues. I have lots of notes on these, but I have not pulled the trigger on the Shimomura catalogue. It is on my list of books to buy, but not the short list.

My best information is:
1 is a registration tax revenue from 1888
2 is a 50-sen court fee revenue from 1894
3 is a documentary revenue from 1883
4 is the low value of the 1873 documentary revenues
5-7 are 1898 tax revenues, unless they are watermarked, in which case they are later.

The years are the first year the design would have appeared. Perfs or watermarks could help a specialist narrow down to a particular year or issue, perhaps.

Thank you Cjd. Your info led me to a great site on Japan Revenues. I will post it here for future reference.

http://eng.ssjp.dk/rev/eng/rev/overviewrev.html