zanilu

Ford I was afraid of your answer. X-Ray diffraction of SEM/TEM are too expensive to be considered for a personal research... Luca

Hi Stephen. Nice pieces especially the second one! Ford. I have a some knowledge about metal analysis from my work, but I can not thing to any technique that will not damage even in very tiny regions the metal or the patina. Do you know of any method that is at the same time cheap and harmless for the piece under examination to determine the composition of the brass. Regards Luca

Thaks for the info Christan. I will vheck it out. Luca

Hello to Everybody on NMB I have sort of fascination for Heianjo zogan tsuba. So I bought some over the years. Among those in my collection I have three that are extremely similar, practically identical in design differing just for their size. All tree tsuba are mitsudomoe testuji with bass inlay in the form of wines and leafs. The smallest of the tree has kozuga and kogai itsu-ana. The largest smallest I consider as part of a sort of daisho. I have found on the net several tsuba (fig-01 to fig-05) similar for design and dimensions to my trio as reported in the attached table. According to Haynes website: A form of brass inlay, see Figure 4.20. This method was used even in the old periods, but from the latter part of the Muromachi Jidai to the Momoyama Jidai, it was called HEIANJO ZOGAN and HIRA ZOGAN of SHINCHU (brass) was quite popular. There are a fair number of extant works by YAMASHIRO NO KUNI JU NAGAYOSHI, HEIANJO JU MASASHIGE, IZUMI NO KAMI KOIKE YOSHIRO, and the like. All my tsuba and the those found on the web look to be of the late Edo period to me, not as old as Muromachi. The workmanship and the designs of these tsuba look the same. Is it so also for a better trained eye? I mean there are subtle differences in the design and realization that I cannot see? I have rarely seen signed Heianjo tsuba (I could be wrong of course) and I have not find any specific information regarding schools or artisans (I could be wrong on this too!). In Heianjo tsuba there seems to be a sort of serial production of certain designs (this one and others). Is this due to the popularity of these designs reproduced by different group of artisans or can they be traced back to some workshop/groups or geograpic areas? I was wondering whether there are specific information about this style or school and whether it is possible to divide them by design or specific peculiarities. Also if anyone of you as information about this mitsudomoe design that he/she can share I would be grateful. Regards Luca Size Table --------------------------------------- tsuba-01 83.7 mm x 82.7 mm x 4.9 mm daisho (dai) 87.0 mm x 86.0 mm x 4.0 mm daisho (sho) 78.0 mm x 77.4 mm x 3.6 mm --------------------------------------- fig-01 83.0 mm x 83.0 mm x 6.0 mm fig-02 82.0 mm x 82.0 mm x 5.0 mm fig-03 85.0 mm x 85.0 mm x 4.5 mm fig-04 87.5 mm x 87.5 mm x 5.0 mm fig-05 84.2 mm x 83.6 mm x 4.5 mm ---------------------------------------

Books arrived in perfect conditions. Thanks Andi Regards Luca

Thanks everybody for the feedback... Luca

Hi to all May I ask you your opinion on this tsuba? http://www.aoijapan.com/tsuba-yoshiyasukao It is not exactly my kind of tsuba since I prefer more essential and simple one but I was wondering if it can be considered a good piece of good/average or above average execution and on which points this deduction is based... Thanks to all Luca

christianmalterre may I ask you the title and author of the book from which you took those pages scan. Thank you in advance. Luca

Dear All Sometimes I am a compulsive buyer so now and then I end up buying something I do not really like. This is the reason why I ended up with this tsuba (see attached pictures). The tsuba dimension are: 83 mm x 78 mm, 3 mm thickness at seppadai. The tsuba is signed Omori truide. From a quick image search on google I got the impression that the author of this piece is not THE Omori Teruide of most of the tsuba I have found. The overall quality of the my tsuba seems far inferior to me that I hear it screaming gimei. Also I didn't found any match in the mei comparing it with geniune Teruide work. Whiteout considering that ugly cutoff on the nakago ana side. Of course and comment from you guys is welcome. Regards Luca

"years"

Hello Everybody Grey I have left the tsuba soak in wd40 for more than one week without seeing any appreciable effect on the rust unfortunately. I will leave tomorrow so I have already applied some wax that I will remove when I get back, probably using isopropilic alcohol. The I will resume with bone (someone knows where to find fossilized ivory?) and the fiber glass pen I have just ordered. The boil+freezing will be last ditch option. Luca

Hi Geraint Your point is perfectly clear, the example you linked it astonishing, especially the ura side. I do not remember the cracks seeing it in Aoi offices, but it is possible... Thank you for the clarification. Luca

Hi all. Thanks for the tips (except for the sand blasting of Stephen ). Since I have to go abroad for a business trip I will put the project on hold for the some time. To avoid problems I was thinking to put some Renaissance wax on the tsuba to protect it temporarily until I resume the project. To remove the wax I was thinking to first boil it and then brush it with a tooth brush and some isoproplyl alcool. Then I will try with the fiberglass pen suggest by Grey. Any suggestion?

Hi Grey Thank you for the suggestion. I will try it. I have been working on the rust for some time now, first soaking the tsuba in wd40 as suggested by Elliot Long and then scraped it with cattle bone splinters. The rust is pretty hard, after more than 6 hours of total scraping time I have obtained few results so far. How frustrating... Regards Luca

Brian, James Thanks for the your indications. James, I am working on the red rust with a lot of patience and ox bone... Regards Luca

Dear All First of all I am a complete beginner in study tosogu so all your comments are welcome. I have bought a few years ago a tsuba with a dragon in clouds as waves depicted on it (see attached pictures). The tsuna is mumei with dimensions of 72 mm x 67 mm, 3 mm thick at the mimi. The material is iron. I have recently found a similar tsuba discussed in: http://www.militaria.co.za/nmb/topic/10748-1st-tsuba-purchase-info-on-tomokiyo-kao/ The design is quite similar both in subject ad realization. My tsuba is in definitely whores conditions with some traces of corrosion, or at least so it seems to me. Or they could be traces of casting. Casting could explain also the fact that the clouds, dragon and waves seems to be no as well defined as in the similar tsuba I was referring above. What is your opinion? Could this tsuba be considered just a low quality cast copy or it could be considered a legit Choshu tsuba even though of lower quality compared to the above? I have tried to remove as much rust as possible using cattle bone shims and rubbing it with rough cotton cloths following the advises I have found on this forum. The red rust seems to be quite stable and not active so far. Thank you in advance for all your suggestions Luca

Hi Geraint Thanks for you answer. Obviously the tsuba you pointed out are of finer quality compared to the one I posted, those are among the tsuba I have seen (in picture) that lead me to guess Nara. As for the wear you mention I have that chance to look at the tsuba in Aoi Art offices in Tokyo back in May of this year and the surface of the whole tsuba looked uniform and shiny without any blemish (migaki ji i guess is the right term). Your remark is too cryptic for me, sorry. Can you be more explicit. Do you mean that the quality of the work is poor and I have to look at it in closer or the opposite? As I said I am a beginner and quite dumb I was able to get more information about the size: 69.5 mm x 64.5 mm x 4.0 mm thickness. Regards Luca

Dear all First of all I am a complete beginner in study tosogu so all your comments are welcome. I have found the pictures of this tsuba on the web and I was trying to figure out to which school it belongs. From the comparison of other tsuba I would guess Nara school mainly because of the passing through sukashi on the side and the rendering of the tree in an almost 3D fashion and of the way it seems to be modeled from soft wax rather than metal. Of this tsuba I have to admit that I like the way patination is used as a sort of paint on the metal surface. To better understand how will use classify this work in term of quality of the execution? Thank you for all your comments Luca